diff --git a/Jlqcd.hpp b/Jlqcd.hpp
new file mode 100644
index 0000000..ffd5bb6
--- /dev/null
+++ b/Jlqcd.hpp
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2026
+ *
+ * Hadrons presets for the JLQCD scaled-domain-wall ensembles used by iblep.
+ */
+
+#pragma once
+
+#include <Hadrons/Application.hpp>
+#include <Hadrons/Modules.hpp>
+
+#include <array>
+#include <stdexcept>
+#include <string>
+#include <string_view>
+
+namespace hadpresets
+{
+using namespace Grid::Hadrons;
+
+struct Jlqcd
+{
+  struct EnsembleParameters
+  {
+    double ml, ms, M5, scale;
+    unsigned int L, T, Ls;
+  };
+
+  inline static constexpr EnsembleParameters fUd3SaPar{0.003, 0.015, 1., 2., 64, 128, 8};
+  inline static constexpr EnsembleParameters mUd3SaPar{0.0042, 0.025, 1., 2., 48, 96, 8};
+  inline static constexpr EnsembleParameters mUd3SbPar{0.0042, 0.018, 1., 2., 48, 96, 8};
+  inline static constexpr EnsembleParameters cUd2SaPar{0.0035, 0.040, 1., 2., 32, 64, 12};
+  inline static constexpr EnsembleParameters cUd2SaLPar{0.0035, 0.040, 1., 2., 48, 96, 12};
+  inline static constexpr EnsembleParameters cUd3SaPar{0.007, 0.040, 1., 2., 32, 64, 12};
+  inline static constexpr EnsembleParameters cUd3SbPar{0.007, 0.030, 1., 2., 32, 64, 12};
+  inline static constexpr EnsembleParameters testPar{0.010, 0.030, 1., 2., 8, 16, 8};
+
+  static inline const EnsembleParameters &ensemble(const std::string &name);
+
+  static inline void addMixedPrecisionSolver(Application &app, const EnsembleParameters &par,
+                                             const std::string &solverName,
+                                             const std::string &gaugeName, const double mass,
+                                             const std::string &twist,
+                                             const std::string &boundary = "1 1 1 -1",
+                                             const double residual = 1.0e-8);
+
+  static inline void addNoFailSolver(Application &app, const EnsembleParameters &par,
+                                     const std::string &solverName, const std::string &gaugeName,
+                                     const double mass, const std::string &twist,
+                                     const std::string &boundary = "1 1 1 -1",
+                                     const double residual = 1.0e-20);
+
+  static inline void addLightSolver(Application &app, const EnsembleParameters &par,
+                                    const std::string &solverName, const std::string &gaugeName,
+                                    const double mass, const std::string &twist,
+                                    const std::string &boundary = "1 1 1 -1",
+                                    const double residual = 1.0e-8);
+
+  static inline void addLightSolver(Application &app, const EnsembleParameters &par,
+                                    const std::string &solverName, const std::string &gaugeName,
+                                    const std::string &twist = "0. 0. 0. 0.",
+                                    const std::string &boundary = "1 1 1 -1",
+                                    const double residual = 1.0e-8);
+
+  static inline void addStrangeSolver(Application &app, const EnsembleParameters &par,
+                                      const std::string &solverName, const std::string &gaugeName,
+                                      const double mass, const std::string &twist,
+                                      const std::string &boundary = "1 1 1 -1",
+                                      const double residual = 1.0e-8);
+
+  static inline void addStrangeSolver(Application &app, const EnsembleParameters &par,
+                                      const std::string &solverName, const std::string &gaugeName,
+                                      const std::string &twist = "0. 0. 0. 0.",
+                                      const std::string &boundary = "1 1 1 -1",
+                                      const double residual = 1.0e-8);
+
+  static inline void addHeavySolver(Application &app, const EnsembleParameters &par,
+                                    const std::string &solverName, const std::string &gaugeName,
+                                    const double mass, const std::string &twist,
+                                    const std::string &boundary = "1 1 1 -1",
+                                    const double residual = 1.0e-20);
+};
+
+inline const Jlqcd::EnsembleParameters &Jlqcd::ensemble(const std::string &name)
+{
+  if (name == "fUd3Sa")
+    return fUd3SaPar;
+  if (name == "mUd3Sa")
+    return mUd3SaPar;
+  if (name == "mUd3Sb")
+    return mUd3SbPar;
+  if (name == "cUd2Sa")
+    return cUd2SaPar;
+  if (name == "cUd2SaL")
+    return cUd2SaLPar;
+  if (name == "cUd3Sa")
+    return cUd3SaPar;
+  if (name == "cUd3Sb")
+    return cUd3SbPar;
+  if (name == "test")
+    return testPar;
+
+  throw std::invalid_argument("unknown JLQCD ensemble preset '" + std::string(name) + "'");
+}
+
+inline void Jlqcd::addMixedPrecisionSolver(Application &app, const EnsembleParameters &par,
+                                           const std::string &solverName,
+                                           const std::string &gaugeName, const double mass,
+                                           const std::string &twist, const std::string &boundary,
+                                           const double residual)
+{
+  const std::string prefix = solverName;
+
+  MUtilities::GaugeSinglePrecisionCast::Par gaugeCastPar;
+  gaugeCastPar.field = gaugeName;
+  app.createModule<MUtilities::GaugeSinglePrecisionCast>(prefix + "_gauge_fp32", gaugeCastPar);
+
+  MAction::ScaledDWF::Par actionPar;
+  actionPar.gauge = gaugeName;
+  actionPar.Ls = par.Ls;
+  actionPar.M5 = par.M5;
+  actionPar.mass = mass;
+  actionPar.scale = par.scale;
+  actionPar.boundary = boundary;
+  actionPar.twist = twist;
+  app.createModule<MAction::ScaledDWF>(prefix + "_dwf", actionPar);
+
+  actionPar.gauge = prefix + "_gauge_fp32";
+  app.createModule<MAction::ScaledDWFF>(prefix + "_dwf_fp32", actionPar);
+
+  MSolver::MixedPrecisionRBPrecCG::Par solverPar;
+  solverPar.innerAction = prefix + "_dwf_fp32";
+  solverPar.outerAction = prefix + "_dwf";
+  solverPar.maxInnerIteration = 10000;
+  solverPar.maxOuterIteration = 100;
+  solverPar.residual = residual;
+  solverPar.innerGuesser = "";
+  solverPar.outerGuesser = "";
+  app.createModule<MSolver::MixedPrecisionRBPrecCG>(solverName, solverPar);
+}
+
+inline void Jlqcd::addNoFailSolver(Application &app, const EnsembleParameters &par,
+                                   const std::string &solverName, const std::string &gaugeName,
+                                   const double mass, const std::string &twist,
+                                   const std::string &boundary, const double residual)
+{
+  const std::string prefix = solverName;
+
+  MAction::ScaledDWF::Par actionPar;
+  actionPar.gauge = gaugeName;
+  actionPar.Ls = par.Ls;
+  actionPar.M5 = par.M5;
+  actionPar.mass = mass;
+  actionPar.scale = par.scale;
+  actionPar.boundary = boundary;
+  actionPar.twist = twist;
+  app.createModule<MAction::ScaledDWF>(prefix + "_dwf", actionPar);
+
+  MSolver::RBPrecCGNoFail::Par solverPar;
+  solverPar.action = prefix + "_dwf";
+  solverPar.maxIteration = 30000;
+  solverPar.residual = residual;
+  solverPar.guesser = "";
+  app.createModule<MSolver::RBPrecCGNoFail>(solverName, solverPar);
+}
+
+inline void Jlqcd::addLightSolver(Application &app, const EnsembleParameters &par,
+                                  const std::string &solverName, const std::string &gaugeName,
+                                  const double mass, const std::string &twist,
+                                  const std::string &boundary, const double residual)
+{
+  addMixedPrecisionSolver(app, par, solverName, gaugeName, mass, twist, boundary, residual);
+}
+
+inline void Jlqcd::addLightSolver(Application &app, const EnsembleParameters &par,
+                                  const std::string &solverName, const std::string &gaugeName,
+                                  const std::string &twist, const std::string &boundary,
+                                  const double residual)
+{
+  addLightSolver(app, par, solverName, gaugeName, par.ml, twist, boundary, residual);
+}
+
+inline void Jlqcd::addStrangeSolver(Application &app, const EnsembleParameters &par,
+                                    const std::string &solverName, const std::string &gaugeName,
+                                    const double mass, const std::string &twist,
+                                    const std::string &boundary, const double residual)
+{
+  addMixedPrecisionSolver(app, par, solverName, gaugeName, mass, twist, boundary, residual);
+}
+
+inline void Jlqcd::addStrangeSolver(Application &app, const EnsembleParameters &par,
+                                    const std::string &solverName, const std::string &gaugeName,
+                                    const std::string &twist, const std::string &boundary,
+                                    const double residual)
+{
+  addStrangeSolver(app, par, solverName, gaugeName, par.ms, twist, boundary, residual);
+}
+
+inline void Jlqcd::addHeavySolver(Application &app, const EnsembleParameters &par,
+                                  const std::string &solverName, const std::string &gaugeName,
+                                  const double mass, const std::string &twist,
+                                  const std::string &boundary, const double residual)
+{
+  addNoFailSolver(app, par, solverName, gaugeName, mass, twist, boundary, residual);
+}
+} // namespace hadpresets
diff --git a/RbcUkqcd.hpp b/RbcUkqcd.hpp
index 5439b7b..a4a5f00 100644
--- a/RbcUkqcd.hpp
+++ b/RbcUkqcd.hpp
@@ -40,6 +40,9 @@ struct RbcUkqcd
     unsigned int L, T, Ls;
   };
 
+  inline static constexpr hadpresets::RbcUkqcd::EnsembleParameters testPar{0.005, 0.0362, 1., 2.,
+                                                                           8,     8,      4};
+
   // C0
   inline static constexpr EnsembleParameters c0UnitaryPar{0.00078, 0.0362, 1.8, 2., 48, 96, 24};
   inline static constexpr unsigned int c0ZMobiusLs = 10;
@@ -79,6 +82,11 @@ struct RbcUkqcd
   inline static constexpr DeflationParameters c1m20DeflPar{3.0e-03, 5.5, 101, 200, 220, 230};
   inline static constexpr DeflationParameters c1m32DeflPar{5.0e-05, 5.5, 101, 100, 110, 120};
 
+  // Light solvers: no deflation
+  static inline void addLightSolver(Application &app, const RbcUkqcd::EnsembleParameters &par,
+                                    const std::string solverName, const std::string gaugeName,
+                                    const std::string boundary, const double residual);
+
   // Light solvers: load deflation from disk
   static inline void addC0LightZMobiusLCDSolver(Application &app, const std::string solverName,
                                                 const std::string gaugeName,
@@ -87,6 +95,12 @@ struct RbcUkqcd
                                                 const std::string boundary = "1 1 1 -1",
                                                 const double residual = 1.0e-8);
 
+  static inline void
+  addC0LightMADWFLCDSolver(Grid::Hadrons::Application &app, const std::string solverName,
+                           const std::string gaugeName, const std::string gaugeTransform,
+                           const std::string eigenpackPath, const std::string boundary = "1 1 1 -1",
+                           const double residual = 1.0e-8);
+
   static inline void
   addM0LightLCDSolver(Application &app, const std::string solverName, const std::string gaugeName,
                       const std::string gaugeTransform, const std::string eigenpackPath,
@@ -125,6 +139,10 @@ struct RbcUkqcd
                                         const std::string gaugeName,
                                         const std::string boundary = "1 1 1 -1",
                                         const double residual = 1.0e-8);
+  static inline void addC0StrangeZMobiusSolver(Grid::Hadrons::Application &app,
+                                               const std::string solverName,
+                                               const std::string gaugeName,
+                                               const std::string boundary, const double residual);
   static inline void addM0StrangeSolver(Application &app, const std::string solverName,
                                         const std::string gaugeName,
                                         const std::string boundary = "1 1 1 1",
@@ -147,6 +165,10 @@ struct RbcUkqcd
                                            const double residual = 1.0e-8);
 
   // Charm solvers, mass is a free parameter
+  static inline void addUnsmearedCharmSolver(Application &app, const std::string solverName,
+                                             const std::string gaugeName, const double mass,
+                                             const int Ls, const double M5,
+                                             const std::string boundary, const double residual);
   static inline void addC0CharmSolver(Application &app, const std::string solverName,
                                       const std::string gaugeName, const double mass,
                                       const std::string boundary = "1 1 1 -1",
@@ -159,6 +181,46 @@ struct RbcUkqcd
 
 // Implementations /////////////////////////////////////////////////////////////////////////////////
 
+// Light
+void RbcUkqcd::addLightSolver(Application &app, const RbcUkqcd::EnsembleParameters &par,
+                              const std::string solverName, const std::string gaugeName,
+                              const std::string boundary, const double residual)
+{
+  const std::string prefix = solverName;
+
+  // Gauge field FP32 cast
+  MUtilities::GaugeSinglePrecisionCast::Par gaugeCastPar;
+
+  gaugeCastPar.field = gaugeName;
+  app.createModule<MUtilities::GaugeSinglePrecisionCast>(prefix + "_gauge_fp32", gaugeCastPar);
+
+  // Scaled DWF action + FP32 version
+  MAction::ScaledDWF::Par actionPar;
+
+  actionPar.gauge = gaugeName;
+  actionPar.Ls = par.Ls;
+  actionPar.M5 = par.M5;
+  actionPar.mass = par.ml;
+  actionPar.scale = par.scale;
+  actionPar.boundary = boundary;
+  actionPar.twist = "0. 0. 0. 0.";
+  app.createModule<MAction::ScaledDWF>(prefix + "_dwf", actionPar);
+  actionPar.gauge = prefix + "_gauge_fp32";
+  app.createModule<MAction::ScaledDWFF>(prefix + "_dwf_fp32", actionPar);
+
+  // Mixed-precision red-black preconditionned CG
+  MSolver::MixedPrecisionRBPrecCG::Par solverPar;
+
+  solverPar.innerAction = prefix + "_dwf_fp32";
+  solverPar.outerAction = prefix + "_dwf";
+  solverPar.maxInnerIteration = 30000;
+  solverPar.maxOuterIteration = 100;
+  solverPar.residual = residual;
+  solverPar.innerGuesser = "";
+  solverPar.outerGuesser = "";
+  app.createModule<MSolver::MixedPrecisionRBPrecCG>(solverName, solverPar);
+}
+
 // Light C0 (load deflation from disk)
 void RbcUkqcd::addC0LightZMobiusLCDSolver(Application &app, const std::string solverName,
                                           const std::string gaugeName,
@@ -236,6 +298,139 @@ void RbcUkqcd::addC0LightZMobiusLCDSolver(Application &app, const std::string so
   app.createModule<MSolver::ZMixedPrecisionRBPrecCGBatched>(solverName, solverPar);
 }
 
+void RbcUkqcd::addC0LightMADWFLCDSolver(Grid::Hadrons::Application &app,
+                                        const std::string solverName, const std::string gaugeName,
+                                        const std::string gaugeTransform,
+                                        const std::string eigenpackPath, const std::string boundary,
+                                        const double residual)
+{
+  using namespace Grid;
+  using namespace Hadrons;
+  using namespace hadpresets;
+
+  const std::string prefix = solverName;
+  const bool gaugeFixed = !gaugeTransform.empty();
+
+  // Gauge field & transform FP32 cast
+  MUtilities::GaugeSinglePrecisionCast::Par gaugeCastPar;
+
+  gaugeCastPar.field = gaugeName;
+  app.createModule<MUtilities::GaugeSinglePrecisionCast>(prefix + "_gauge_fp32", gaugeCastPar);
+  if (gaugeFixed)
+  {
+    MUtilities::ColourMatrixSinglePrecisionCast::Par transformCastPar;
+
+    transformCastPar.field = gaugeTransform;
+    app.createModule<MUtilities::ColourMatrixSinglePrecisionCast>(prefix + "_gaugeTransform_fp32",
+                                                                  transformCastPar);
+  }
+
+  // Scaled DWF action
+  MAction::ScaledDWF::Par actionPar;
+  actionPar.gauge = gaugeName;
+  actionPar.Ls = RbcUkqcd::c0UnitaryPar.Ls;
+  actionPar.M5 = RbcUkqcd::c0UnitaryPar.M5;
+  actionPar.mass = RbcUkqcd::c0UnitaryPar.ml;
+  actionPar.scale = 2.;
+  actionPar.boundary = boundary;
+  actionPar.twist = "0. 0. 0. 0.";
+  app.createModule<MAction::ScaledDWF>(prefix + "_dwf", actionPar);
+
+  // Single-prec ZMobius Action
+  MAction::ZMobiusDWFF::Par actionFPar;
+  actionFPar.Ls = RbcUkqcd::c0LCDPar.Ls;
+  actionFPar.M5 = RbcUkqcd::c0LCDPar.M5;
+  actionFPar.mass = RbcUkqcd::c0LCDPar.ml;
+  actionFPar.b = 1.;
+  actionFPar.c = 0.;
+  actionFPar.omega = std::vector<std::complex<double>>(RbcUkqcd::c0ZMobiusOmega.begin(),
+                                                       RbcUkqcd::c0ZMobiusOmega.end());
+  actionFPar.boundary = boundary;
+  actionFPar.twist = "0. 0. 0. 0.";
+  actionFPar.gauge = prefix + "_gauge_fp32";
+  app.createModule<MAction::ZMobiusDWFF>(prefix + "_dwf_fp32", actionFPar);
+
+  // Compressed eigenpack
+  MIO::LoadCoarseFermionEigenPack250F::Par epPar;
+
+  epPar.filestem = eigenpackPath;
+  epPar.multiFile = true;
+  epPar.redBlack = true;
+  epPar.sizeFine = 250;
+  epPar.sizeCoarse = 2000;
+  epPar.Ls = 10;
+  epPar.blockSize = "4 4 4 3 10";
+  epPar.orthogonalise = gaugeFixed;
+  epPar.gaugeXform = gaugeFixed ? (prefix + "_gaugeTransform_fp32") : "";
+  app.createModule<MIO::LoadCoarseFermionEigenPack250F>(prefix + "_epack", epPar);
+
+  // Inner guesser
+  MGuesser::CoarseDeflation250F::Par iguessPar;
+
+  iguessPar.eigenPack = prefix + "_epack";
+  iguessPar.size = 2000;
+  app.createModule<MGuesser::CoarseDeflation250F>(prefix + "_iguesser", iguessPar);
+
+  // ZMobius-MADWF red-black preconditionned CG
+  MSolver::ZMADWFMixedPrecCG::Par solverPar;
+  solverPar.innerAction = prefix + "_dwf_fp32";
+  solverPar.outerAction = prefix + "_dwf";
+  solverPar.maxInnerIteration = 10000;
+  solverPar.maxPVIteration = 1000;
+  solverPar.maxOuterIteration = 100;
+  solverPar.innerResidual = 1e-5;
+  solverPar.PVResidual = 1e-5;
+  solverPar.outerResidual = residual;
+  solverPar.guesser = prefix + "_iguesser";
+  app.createModule<MSolver::ZMADWFMixedPrecCG>(solverName, solverPar);
+}
+
+void RbcUkqcd::addC0StrangeZMobiusSolver(Grid::Hadrons::Application &app,
+                                         const std::string solverName, const std::string gaugeName,
+                                         const std::string boundary, const double residual)
+{
+  using namespace Grid;
+  using namespace Hadrons;
+  using namespace hadpresets;
+
+  const std::string prefix = solverName;
+
+  // Gauge field & transform FP32 cast
+  MUtilities::GaugeSinglePrecisionCast::Par gaugeCastPar;
+
+  gaugeCastPar.field = gaugeName;
+  app.createModule<MUtilities::GaugeSinglePrecisionCast>(prefix + "_gauge_fp32", gaugeCastPar);
+
+  // Scaled DWF action + FP32 version
+  MAction::ZMobiusDWF::Par actionPar;
+
+  actionPar.gauge = gaugeName;
+  actionPar.Ls = RbcUkqcd::c0LCDPar.Ls;
+  actionPar.M5 = RbcUkqcd::c0LCDPar.M5;
+  actionPar.mass = RbcUkqcd::c0LCDPar.ms;
+  actionPar.b = 1.;
+  actionPar.c = 0.;
+  actionPar.omega = std::vector<std::complex<double>>(RbcUkqcd::c0ZMobiusOmega.begin(),
+                                                      RbcUkqcd::c0ZMobiusOmega.end());
+  actionPar.boundary = boundary;
+  actionPar.twist = "0. 0. 0. 0.";
+  app.createModule<MAction::ZMobiusDWF>(prefix + "_dwf", actionPar);
+  actionPar.gauge = prefix + "_gauge_fp32";
+  app.createModule<MAction::ZMobiusDWFF>(prefix + "_dwf_fp32", actionPar);
+
+  // Batched mixed-precision red-black preconditionned CG
+  MSolver::ZMixedPrecisionRBPrecCG::Par solverPar;
+
+  solverPar.innerAction = prefix + "_dwf_fp32";
+  solverPar.outerAction = prefix + "_dwf";
+  solverPar.maxInnerIteration = 10000;
+  solverPar.maxOuterIteration = 100;
+  solverPar.residual = residual;
+  solverPar.innerGuesser = "";
+  solverPar.outerGuesser = "";
+  app.createModule<MSolver::ZMixedPrecisionRBPrecCG>(solverName, solverPar);
+}
+
 // Light M0 (load deflation from disk)
 void RbcUkqcd::addM0LightLCDSolver(Application &app, const std::string solverName,
                                    const std::string gaugeName, const std::string gaugeTransform,
@@ -497,6 +692,51 @@ void RbcUkqcd::addC1M32StrangeSolver(Application &app, const std::string solverN
   RbcUkqcd::addStrangeSolver(app, RbcUkqcd::c1m32IRLPar, solverName, gaugeName, boundary, residual);
 }
 
+// Charm
+void RbcUkqcd::addUnsmearedCharmSolver(Grid::Hadrons::Application &app,
+                                       const std::string solverName, const std::string gaugeName,
+                                       const double mass, const int Ls, const double M5,
+                                       const std::string boundary, const double residual)
+{
+  using namespace Grid;
+  using namespace Hadrons;
+
+  const std::string prefix = solverName;
+
+  // Gauge field & transform FP32 cast
+  MUtilities::GaugeSinglePrecisionCast::Par gaugeCastPar;
+
+  gaugeCastPar.field = gaugeName;
+  app.createModule<MUtilities::GaugeSinglePrecisionCast>(prefix + "_gauge_fp32", gaugeCastPar);
+
+  // Scaled DWF action + FP32 version
+  MAction::ScaledDWF::Par actionPar;
+
+  actionPar.gauge = gaugeName;
+  actionPar.Ls = Ls;
+  actionPar.M5 = M5;
+  actionPar.mass = mass;
+  actionPar.scale = 2.;
+
+  actionPar.boundary = boundary;
+  actionPar.twist = "0. 0. 0. 0.";
+  app.createModule<MAction::ScaledDWF>(prefix + "_dwf", actionPar);
+  actionPar.gauge = prefix + "_gauge_fp32";
+  app.createModule<MAction::ScaledDWFF>(prefix + "_dwf_fp32", actionPar);
+
+  // Batched mixed-precision red-black preconditionned CG
+  MSolver::MixedPrecisionRBPrecCG::Par solverPar;
+
+  solverPar.innerAction = prefix + "_dwf_fp32";
+  solverPar.outerAction = prefix + "_dwf";
+  solverPar.maxInnerIteration = 10000;
+  solverPar.maxOuterIteration = 100;
+  solverPar.residual = residual;
+  solverPar.innerGuesser = "";
+  solverPar.outerGuesser = "";
+  app.createModule<MSolver::MixedPrecisionRBPrecCG>(solverName, solverPar);
+}
+
 // Charm C0
 void RbcUkqcd::addC0CharmSolver(Application &app, const std::string solverName,
                                 const std::string gaugeName, const double mass,