diff --git a/src/main/java/Plate.java b/src/main/java/Plate.java
index 0e8704b..75f3a86 100644
--- a/src/main/java/Plate.java
+++ b/src/main/java/Plate.java
@@ -184,18 +184,9 @@ public class Plate {
         SequenceType[] sequenceTypes = EnumSet.allOf(SequenceType.class).toArray(new SequenceType[0]);
         Map<String, Integer> distinctMisreadCounts = new HashMap<>();
         Map<String, SequenceRecord> sequenceMap = new LinkedHashMap<>();
-        //booleans for testing
-        Boolean first= false;
-        Boolean second = false;
-        Boolean third = false;
-        Boolean fourth = false;
-
         for (int well = 0; well < size; well++) {
-            first = true;
             for (String[] cell : wells.get(well)) {
-                second = true;
                 for (int sIndex : sIndices) {
-                    third = true;
                     //skip dropout sequences, which have value -1
                     if (!"-1".equals(cell[sIndex])) {
                         for (int j = 0; j < readDepth; j++) {
@@ -204,7 +195,7 @@ public class Plate {
                                 StringBuilder spurious = new StringBuilder(cell[sIndex]);
                                 //if this sequence hasn't been misread before, or the read error is unique,
                                 //append one more "*" than has been appended before
-                                if (!distinctMisreadCounts.containsKey(cell[sIndex]) || rand.nextDouble() > errorCollisionRate) {
+                                if (rand.nextDouble() > errorCollisionRate || !distinctMisreadCounts.containsKey(cell[sIndex])) {
                                     distinctMisreadCounts.merge(cell[sIndex], 1, (oldValue, newValue) -> oldValue + newValue);
                                     for (int k = 0; k < distinctMisreadCounts.get(cell[sIndex]); k++) {
                                         spurious.append("*");
@@ -224,7 +215,6 @@ public class Plate {
                             }
                             //sequence is read correctly
                             else {
-                                fourth = true;
                                 if (!sequenceMap.containsKey(cell[sIndex])) {
                                     SequenceRecord tmp = new SequenceRecord(cell[sIndex], sequenceTypes[sIndex]);
                                     tmp.addRead(well);
@@ -238,11 +228,6 @@ public class Plate {
                 }
             }
         }
-        System.out.println("First: " + first.toString());
-        System.out.println("Second: " + second.toString());
-        System.out.println("Third: " + third.toString());
-        System.out.println("Fourth: " + fourth.toString());
-        System.out.println(sequenceMap.size());
         return sequenceMap;
     }