diff --git a/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadIntolerant.java b/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadTolerance.java
similarity index 87%
rename from src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadIntolerant.java
rename to src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadTolerance.java
index 421589c5d..12cf3b0bc 100644
--- a/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadIntolerant.java
+++ b/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadTolerance.java
@@ -17,18 +17,19 @@ import java.util.Arrays;
 import static net.openhft.chronicle.values.Values.newNativeReference;
 
 
-public class DirtyReadIntolerant {
+public class DirtyReadTolerance<K,V> {
 
-    public static void main(String... ignored) throws Exception {
+    public static void main(String args[]) throws Exception {
 
-        System.out.println("DirtyReadOffender,chrAig,DirtyReadVictim");
+        System.out.println("DirtyReadOffender,chrAig["+args[0]+"],DirtyReadVictim");
+        String isoLevel = args[0];
 
         ChronicleMap<String, BondVOInterface> operand =
-                DirtyReadIntolerant.acquireChronicleMapOperand(
+                DirtyReadTolerance.acquireChronicleMapOperand(
                         "C:\\Users\\buddy\\dev\\shm\\OPERAND_CHRONICLE_MAP"
                 );
         ChronicleMap<String, Integer> operator =
-                DirtyReadIntolerant.acquireChronicleMapOperator(
+                DirtyReadTolerance.acquireChronicleMapOperator(
                         "C:\\Users\\buddy\\dev\\shm\\OPERATOR_CHRONICLE_MAP"
                 );
         ChronicleAcidIsolationGovernor chrAig = new ChronicleAcidIsolationGovernor();
@@ -40,7 +41,7 @@ public class DirtyReadIntolerant {
         DirtyReadOffender offender = new DirtyReadOffender();
         offender.setCraig(chrAig);
 
-        DirtyReadVictim victim = new DirtyReadVictim();
+        DirtyReadVictim victim = new DirtyReadVictim(isoLevel);
         victim.setCraig(chrAig);
 
         (new Thread(offender)).start();
diff --git a/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadVictim.java b/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadVictim.java
index 0fd68cc6c..d41b963fa 100644
--- a/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadVictim.java
+++ b/src/test/java/net/openhft/chronicle/map/fromdocs/acid/DirtyReadVictim.java
@@ -4,13 +4,19 @@ package net.openhft.chronicle.map.fromdocs.acid;
 import net.openhft.chronicle.map.acid.BondVOInterface;
 import net.openhft.chronicle.map.acid.ChronicleAcidIsolation;
 import net.openhft.chronicle.map.acid.ChronicleAcidIsolationGovernor;
-
 import java.sql.SQLException;
 import java.util.Scanner;
-
 import static net.openhft.chronicle.values.Values.newNativeReference;
 
 public class DirtyReadVictim implements Runnable {
+    int isoLevel = ChronicleAcidIsolation.LOWEST_LATENCY;
+
+    DirtyReadVictim(String isoL) {
+        if (isoL.equals("DIRTY_READ_INTOLERANT"))
+            this.isoLevel = ChronicleAcidIsolation.DIRTY_READ_INTOLERANT;
+        else if (isoL.equals("DIRTY_READ_OPTIMISTIC"))
+            this.isoLevel = ChronicleAcidIsolation.DIRTY_READ_OPTIMISTIC;
+    }
 
     ChronicleAcidIsolationGovernor chrAig;
 
@@ -40,7 +46,9 @@ public class DirtyReadVictim implements Runnable {
                     " DirtyReadVictim calling chrAig.get('369604101')"
             );
             //sc.nextLine();
-            chrAig.setTransactionIsolation(ChronicleAcidIsolation.DIRTY_READ_INTOLERANT);
+            chrAig.setTransactionIsolation(this.isoLevel);
+            //chrAig.setTransactionIsolation(ChronicleAcidIsolation.DIRTY_READ_INTOLERANT);
+            //chrAig.setTransactionIsolation(ChronicleAcidIsolation.DIRTY_READ_OPTIMISTIC);
             bond = chrAig.get("369604101");
             Double coupon = bond.getCoupon();
             System.out.println(