diff --git a/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_GBL_TrackClusterMatcher.lcsim b/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_GBL_TrackClusterMatcher.lcsim
index 2633679b0..b447a6d64 100644
--- a/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_GBL_TrackClusterMatcher.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_GBL_TrackClusterMatcher.lcsim
@@ -133,6 +133,12 @@
             <rmsTimeCut>8.0</rmsTimeCut>
             <maxTrackerHits>250</maxTrackerHits>
         </driver>
+        <driver name="TrackReconSeed456Conf3Extd21" type="org.hps.recon.tracking.TrackerReconDriver">
+            <trackCollectionName>Tracks_s456_c3_e21</trackCollectionName>
+            <strategyResource>HPS_s456_c3_e21.xml</strategyResource>
+            <debug>false</debug>
+            <rmsTimeCut>8.0</rmsTimeCut>
+        </driver>
         <driver name="TrackReconSeed345Conf6Extd7" type="org.hps.recon.tracking.TrackerReconDriver">
             <trackCollectionName>Tracks_s345_c6_e7</trackCollectionName>
             <strategyResource>HPS_s345_c6_e7_2019.xml</strategyResource>
diff --git a/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_KF_TrackClusterMatcher.lcsim b/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_KF_TrackClusterMatcher.lcsim
index 3cbd5c6d8..f8ce1a8b1 100644
--- a/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_KF_TrackClusterMatcher.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/recon/PhysicsRun2016FullReconMC_KF_TrackClusterMatcher.lcsim
@@ -39,6 +39,7 @@
            <collectionNames>EcalCalHits EcalClusters EcalClustersCorr FinalStateParticles UnconstrainedMollerCandidates UnconstrainedMollerVertices UnconstrainedV0Candidates UnconstrainedV0Vertices TargetConstrainedMollerCandidates TargetConstrainedMollerVertices TargetConstrainedV0Candidates TargetConstrainedV0Vertices BeamspotConstrainedMollerCandidates BeamspotConstrainedMollerVertices BeamspotConstrainedV0Candidates BeamspotConstrainedV0Vertices GBLKinkData GBLKinkDataRelations MatchedToGBLTrackRelations HelicalTrackHits HelicalTrackHitRelations MatchedTracks GBLTracks MatchedToGBLTrackRelations RotatedHelicalTrackHits RotatedHelicalTrackHitRelations SVTFittedRawTrackerHits  SVTShapeFitParameters StripClusterer_SiTrackerHitStrip1D TrackData TrackDataRelations </collectionNames>
           <!-- Clean tracking and Final state particles -->
           <!-- <collectionNames>FinalStateParticles GBLKinkData GBLKinkDataRelations MatchedToGBLTrackRelations HelicalTrackHits HelicalTrackHitRelations MatchedTracks GBLTracks MatchedToGBLTrackRelations RotatedHelicalTrackHits RotatedHelicalTrackHitRelations TrackData  </collectionNames> -->
+      </driver>
 
         <driver name="RfFitter" type="org.hps.evio.RfFitterDriver"/>