diff --git a/PWGCF/FemtoUniverse/Core/FemtoUniverseCascadeSelection.h b/PWGCF/FemtoUniverse/Core/FemtoUniverseCascadeSelection.h
index 43d3e2cf54b..920cfbdd2b2 100644
--- a/PWGCF/FemtoUniverse/Core/FemtoUniverseCascadeSelection.h
+++ b/PWGCF/FemtoUniverse/Core/FemtoUniverseCascadeSelection.h
@@ -86,7 +86,7 @@ class FemtoUniverseCascadeSelection
 
  public:
   FemtoUniverseCascadeSelection()
-    : nPtCascadeMinSel(0), nPtCascadeMaxSel(0), nEtaCascadeMaxSel(0), nDCAV0DaughMax(0), nCPAV0Min(0), nTranRadV0Min(0), nTranRadV0Max(0), nV0DecVtxMax(0), nDCACascadeDaughMax(0), nCPACascadeMin(0), nTranRadCascadeMin(0), nTranRadCascadeMax(0), nDecVtxMax(0), nDCAPosToPV(0), nDCANegToPV(0), nDCABachToPV(0), nDCAV0ToPV(0), pTCascadeMin(9999999.), pTCascadeMax(-9999999.), etaCascadeMax(-9999999.), fDCAV0DaughMax(-9999999.), fCPAV0Min(9999999.), fTranRadV0Min(9999999.), fTranRadV0Max(-9999999.), fV0DecVtxMax(-9999999.), fDCACascadeDaughMax(-9999999.), fCPACascadeMin(9999999.), fTranRadCascadeMin(9999999.), fTranRadCascadeMax(-9999999.), fDecVtxMax(-9999999.), fDCAPosToPV(9999999.), fDCANegToPV(9999999.), fDCABachToPV(9999999.), fDCAV0ToPV(9999999.), fV0InvMassLowLimit(1.05), fV0InvMassUpLimit(1.3), fInvMassLowLimitXi(1.25), fInvMassUpLimitXi(1.4), fInvMassLowLimitOmega(1.6), fInvMassUpLimitOmega(1.8) /*, fRejectCompetingMass(false), fInvMassCompetingLowLimit(1.5), fInvMassCompetingUpLimit(2.0), nSigmaPIDOffsetTPC(0.)*/
+    : nPtCascadeMinSel(0), nPtCascadeMaxSel(0), nEtaCascadeMaxSel(0), nDCAV0DaughMax(0), nCPAV0Min(0), nTranRadV0Min(0), nTranRadV0Max(0), nV0DecVtxMax(0), nDCACascadeDaughMax(0), nCPACascadeMin(0), nTranRadCascadeMin(0), nTranRadCascadeMax(0), nDecVtxMax(0), nDCAPosToPV(0), nDCANegToPV(0), nDCABachToPV(0), nDCAV0ToPV(0), pTCascadeMin(9999999.), pTCascadeMax(-9999999.), etaCascadeMax(-9999999.), fDCAV0DaughMax(-9999999.), fCPAV0Min(9999999.), fTranRadV0Min(9999999.), fTranRadV0Max(-9999999.), fV0DecVtxMax(-9999999.), fDCACascadeDaughMax(-9999999.), fCPACascadeMin(9999999.), fTranRadCascadeMin(9999999.), fTranRadCascadeMax(-9999999.), fDecVtxMax(-9999999.), fDCAPosToPV(9999999.), fDCANegToPV(9999999.), fDCABachToPV(9999999.), fDCAV0ToPV(9999999.), fV0InvMassLowLimit(1.05), fV0InvMassUpLimit(1.3), fInvMassLowLimitXi(1.25), fInvMassUpLimitXi(1.4), fInvMassLowLimitOmega(1.6), fInvMassUpLimitOmega(1.8), fRejectCompetingMass(false) /*, fInvMassCompetingLowLimit(1.5), fInvMassCompetingUpLimit(2.0), nSigmaPIDOffsetTPC(0.)*/
   {
   }
 
@@ -176,6 +176,13 @@ class FemtoUniverseCascadeSelection
     fInvMassCompetingUpLimit = upLimit;
   }*/
 
+  /// Set whether to reject competing mass for Omega
+  /// \param reject Boolean flag
+  void setRejectCompetingMassOmega(bool reject)
+  {
+    fRejectCompetingMass = reject;
+  }
+
  private:
   int nPtCascadeMinSel;
   int nPtCascadeMaxSel;
@@ -227,6 +234,8 @@ class FemtoUniverseCascadeSelection
 
   // float nSigmaPIDOffsetTPC;
 
+  bool fRejectCompetingMass;
+
   FemtoUniverseTrackSelection posDaughTrack;
   FemtoUniverseTrackSelection negDaughTrack;
   FemtoUniverseTrackSelection bachTrackSel;
@@ -437,11 +446,15 @@ bool FemtoUniverseCascadeSelection::isSelectedMinimal(Col const& col, Casc const
   const float invMassXi = cascade.mXi();
   const float invMassOmega = cascade.mOmega();
 
+  // Check individual mass window hypotheses
+  const bool isXi = (invMassXi >= fInvMassLowLimitXi && invMassXi <= fInvMassUpLimitXi);
+  const bool isOmega = (invMassOmega >= fInvMassLowLimitOmega && invMassOmega <= fInvMassUpLimitOmega);
+  const bool passOmega = isOmega && (!fRejectCompetingMass || !isXi);
+
   if (invMassLambda < fV0InvMassLowLimit || invMassLambda > fV0InvMassUpLimit) {
     return false;
   }
-  // Accepts the cascade candidates as either Xi or Omega but not both
-  if ((invMassXi < fInvMassLowLimitXi || invMassXi > fInvMassUpLimitXi) == (invMassOmega < fInvMassLowLimitOmega || invMassOmega > fInvMassUpLimitOmega)) {
+  if (!isXi && !passOmega) {
     return false;
   }
   /*if (fRejectCompetingMass) {
diff --git a/PWGCF/FemtoUniverse/TableProducer/femtoUniverseProducerTask.cxx b/PWGCF/FemtoUniverse/TableProducer/femtoUniverseProducerTask.cxx
index 6ef52e5c8bc..880003d8e81 100644
--- a/PWGCF/FemtoUniverse/TableProducer/femtoUniverseProducerTask.cxx
+++ b/PWGCF/FemtoUniverse/TableProducer/femtoUniverseProducerTask.cxx
@@ -324,6 +324,7 @@ struct FemtoUniverseProducerTask {
     Configurable<float> confXiInvMassUpLimit{"confXiInvMassUpLimit", 1.40, "Upper limit of the Xi invariant mass"};
     Configurable<float> confOmegaInvMassLowLimit{"confOmegaInvMassLowLimit", 1.60, "Lower limit of the Omega invariant mass"};
     Configurable<float> confOmegaInvMassUpLimit{"confOmegaInvMassUpLimit", 1.80, "Upper limit of the Omega invariant mass"};
+    Configurable<bool> confRejectCompetingMassOmega{"confRejectCompetingMassOmega", false, "Switch to reject competing mass for Omega"};
   } ConfCascadeSelection;
 
   // PHI
@@ -692,15 +693,15 @@ struct FemtoUniverseProducerTask {
       cascadeCuts.setChildCuts(femto_universe_cascade_selection::kBachTrack, ConfCascadeSelection.confCascChildTPCnClsMin, femto_universe_track_selection::kTPCnClsMin, femto_universe_selection::kLowerLimit);
       cascadeCuts.setChildCuts(femto_universe_cascade_selection::kBachTrack, ConfCascadeSelection.confCascChildPIDnSigmaMax, femto_universe_track_selection::kPIDnSigmaMax, femto_universe_selection::kAbsUpperLimit);
 
-      // TODO
       cascadeCuts.setChildPIDSpecies(femto_universe_cascade_selection::kPosTrack, ConfV0Selection.confChildPIDspecies);
       cascadeCuts.setChildPIDSpecies(femto_universe_cascade_selection::kNegTrack, ConfV0Selection.confChildPIDspecies);
       cascadeCuts.setChildPIDSpecies(femto_universe_cascade_selection::kBachTrack, ConfCascadeSelection.confCascChildPIDspecies);
 
       // check if works correctly for bachelor track
       cascadeCuts.init<aod::femtouniverseparticle::ParticleType::kCascade, aod::femtouniverseparticle::ParticleType::kV0Child, aod::femtouniverseparticle::ParticleType::kCascadeBachelor, aod::femtouniverseparticle::CutContainerType>(&cascadeQaRegistry);
-      // invmass cuts
+      // invmass cuts & competing mass rejection
       cascadeCuts.setInvMassLimits(ConfCascadeSelection.confXiInvMassLowLimit, ConfCascadeSelection.confOmegaInvMassLowLimit, ConfCascadeSelection.confXiInvMassUpLimit, ConfCascadeSelection.confOmegaInvMassUpLimit);
+      cascadeCuts.setRejectCompetingMassOmega(ConfCascadeSelection.confRejectCompetingMassOmega);
     }
 
     if (ConfGeneral.confIsActivatePhi) {