From 3be55fc734396b31177e520174c76fb7a4fb96f5 Mon Sep 17 00:00:00 2001
From: Nathan Baltzell <baltzell@gmx.com>
Date: Fri, 16 Oct 2026 18:24:35 -0400
Subject: [PATCH 1/2] do not reinitialize

---
 .../java/org/jlab/rec/cvt/track/Seed.java     | 22 +++++++------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java b/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java
index 14da31acc7..41bb73a1df 100644
--- a/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java
+++ b/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java
@@ -260,13 +260,6 @@ else if(tr.sortingMethod ==1) {
 
     public boolean fit(int fitIter, double xb, double yb, double bfield) {
         
-        List<Double> X = new ArrayList<>();
-        List<Double> Y = new ArrayList<>();
-        List<Double> Z = new ArrayList<>();
-        List<Double> Rho = new ArrayList<>();
-        List<Double> ErrZ = new ArrayList<>();
-        List<Double> ErrRho = new ArrayList<>();
-        List<Double> ErrRt = new ArrayList<>();
         List<Cross> BMTCrossesC = new ArrayList<>();
         List<Cross> BMTCrossesZ = new ArrayList<>();
         List<Cross> SVTCrosses = new ArrayList<>();
@@ -302,13 +295,14 @@ else if (c.getDetector()==DetectorType.BMT && c.getType()==BMTType.Z ) {
         if (bmtCSz >= 2) {
             useSVTdipAngEst = 0;
         }
-        ((ArrayList<Double>) X).ensureCapacity(svtSz + bmtZSz);
-        ((ArrayList<Double>) Y).ensureCapacity(svtSz + bmtZSz);
-        ((ArrayList<Double>) Z).ensureCapacity(svtSz * useSVTdipAngEst + bmtCSz);
-        ((ArrayList<Double>) Rho).ensureCapacity(svtSz * useSVTdipAngEst + bmtCSz);
-        ((ArrayList<Double>) ErrZ).ensureCapacity(svtSz * useSVTdipAngEst + bmtCSz);
-        ((ArrayList<Double>) ErrRho).ensureCapacity(svtSz * useSVTdipAngEst + bmtCSz); // Try: don't use svt in dipdangle fit determination
-        ((ArrayList<Double>) ErrRt).ensureCapacity(svtSz + bmtZSz);
+
+        List<Double> X = new ArrayList<>(svtSz + bmtZSz);
+        List<Double> Y = new ArrayList<>(svtSz + bmtZSz);
+        List<Double> Z = new ArrayList<>(svtSz * useSVTdipAngEst + bmtCSz);
+        List<Double> Rho = new ArrayList<>(svtSz * useSVTdipAngEst + bmtCSz);
+        List<Double> ErrZ = new ArrayList<>(svtSz * useSVTdipAngEst + bmtCSz);
+        List<Double> ErrRho = new ArrayList<>(svtSz * useSVTdipAngEst + bmtCSz);
+        List<Double> ErrRt = new ArrayList<>(svtSz + bmtZSz);
          
         HelicalTrackFitter fitTrk = new HelicalTrackFitter();
         for (int i = 0; i < fitIter; i++) {

From 00ffc13bab9b26af0db0499b8cb26192b90f7ab9 Mon Sep 17 00:00:00 2001
From: Nathan Baltzell <baltzell@gmx.com>
Date: Fri, 16 Oct 2026 18:27:14 -0400
Subject: [PATCH 2/2] cleanup initialization

---
 .../java/org/jlab/rec/cvt/track/Seed.java     | 21 +++++--------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java b/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java
index 41bb73a1df..6261c7d016 100644
--- a/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java
+++ b/reconstruction/cvt/src/main/java/org/jlab/rec/cvt/track/Seed.java
@@ -266,10 +266,6 @@ public boolean fit(int fitIter, double xb, double yb, double bfield) {
         
         double chisqMax = Double.POSITIVE_INFINITY;
 
-        int svtSz = 0;
-        int bmtZSz = 0;
-        int bmtCSz = 0;
-        
         for (Cross c : this.getCrosses()) {
             // reset cross to clear previous track settings on direction and Point
             c.reset();
@@ -283,19 +279,12 @@ else if (c.getDetector()==DetectorType.BMT && c.getType()==BMTType.Z ) {
                 BMTCrossesZ.add(c);
             }
         }
-        svtSz = SVTCrosses.size();
-        if (BMTCrossesZ != null) {
-            bmtZSz = BMTCrossesZ.size();
-        }
-        if (BMTCrossesC != null) {
-            bmtCSz = BMTCrossesC.size();
-        }
-
-        int useSVTdipAngEst = 1;
-        if (bmtCSz >= 2) {
-            useSVTdipAngEst = 0;
-        }
 
+        int svtSz = SVTCrosses.size();
+        int bmtZSz = BMTCrossesZ.size();
+        int bmtCSz = BMTCrossesC.size();
+        int useSVTdipAngEst = bmtCSz >= 2 ? 0 : 1;
+        
         List<Double> X = new ArrayList<>(svtSz + bmtZSz);
         List<Double> Y = new ArrayList<>(svtSz + bmtZSz);
         List<Double> Z = new ArrayList<>(svtSz * useSVTdipAngEst + bmtCSz);