diff --git a/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java b/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java
index 25871b0ed..285be39c1 100755
--- a/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java
+++ b/java/src/org/broadinstitute/sting/gatk/walkers/annotator/FisherStrand.java
@@ -49,42 +49,30 @@ public class FisherStrand implements InfoFieldAnnotation, WorkInProgressAnnotati
     private static final String ALTFWD = "ALTFWD";
     private static final String ALTREV = "ALTREV";
     private static final String FS = "FS";
+    private static final double MIN_PVALUE = 1E-320;
 
     public Map<String, Object> annotate(RefMetaDataTracker tracker, ReferenceContext ref, Map<String, AlignmentContext> stratifiedContexts, VariantContext vc) {
         if ( ! vc.isVariant() || vc.isFiltered() || ! vc.isBiallelic() || ! vc.isSNP() )
             return null;
 
         int[][] table = getContingencyTable(stratifiedContexts, vc.getReference(), vc.getAlternateAllele(0));
-        Double pvalue = pValueForContingencyTable(table);
+        Double pvalue = Math.max(pValueForContingencyTable(table), MIN_PVALUE);
         if ( pvalue == null )
             return null;
 
         // use Math.abs to prevent -0's
         Map<String, Object> map = new HashMap<String, Object>();
-        int phredPValue = (int)Math.round(QualityUtils.phredScaleErrorRate(pvalue));
-        addInt(map, REFFWD, table[0][0]);
-        addInt(map, REFREV, table[0][1]);
-        addInt(map, ALTFWD, table[1][0]);
-        addInt(map, ALTREV, table[1][1]);
-        addInt(map, FS, phredPValue);
+        map.put(FS, String.format("%.3f", QualityUtils.phredScaleErrorRate(pvalue)));
         return map;
     }
 
-    private static void addInt(Map<String, Object> map, String key, int value)  {
-        map.put(key, String.format("%d", value));
-    }
-
     public List<String> getKeyNames() {
         return Arrays.asList(REFFWD,REFREV,ALTFWD,ALTREV,FS);
     }
 
     public List<VCFInfoHeaderLine> getDescriptions() {
         return Arrays.asList(
-                new VCFInfoHeaderLine(REFFWD, 1, VCFHeaderLineType.Integer, "Count of bases with REF allele, forward strand"),
-                new VCFInfoHeaderLine(REFREV, 1, VCFHeaderLineType.Integer, "Count of bases with REF allele, reverse strand"),
-                new VCFInfoHeaderLine(ALTFWD, 1, VCFHeaderLineType.Integer, "Count of bases with ALT allele, forward strand"),
-                new VCFInfoHeaderLine(ALTREV, 1, VCFHeaderLineType.Integer, "Count of bases with ALT allele, reverse strand"),
-                new VCFInfoHeaderLine(FS, 1, VCFHeaderLineType.Integer, "Integer-rounded Phred-scaled p-value using Fisher's exact test to detect strand bias"));
+            new VCFInfoHeaderLine(FS, 1, VCFHeaderLineType.Float, "Phred-scaled p-value using Fisher's exact test to detect strand bias"));
     }
 
     private Double pValueForContingencyTable(int[][] originalTable) {
diff --git a/java/src/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantDataManager.java b/java/src/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantDataManager.java
index 801de6704..202742a5d 100755
--- a/java/src/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantDataManager.java
+++ b/java/src/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantDataManager.java
@@ -214,7 +214,7 @@ public class VariantDataManager {
             } else {
                 value = Double.parseDouble( (String)vc.getAttribute( annotationKey ) );
                 if( Double.isInfinite(value) ) { value = Double.NaN; }
-                if( jitter && ( annotationKey.equalsIgnoreCase("HRUN") || annotationKey.equalsIgnoreCase("FS") ) ) { // Integer valued annotations must be jittered a bit to work in this GMM
+                if( jitter && ( annotationKey.equalsIgnoreCase("HRUN") ) ) { // Integer valued annotations must be jittered a bit to work in this GMM
                       value += -0.25 + 0.5 * GenomeAnalysisEngine.getRandomGenerator().nextDouble();
                 }
                 if( annotationKey.equals("HaplotypeScore") && MathUtils.compareDoubles(value, 0.0, 0.0001) == 0 ) { value = -0.2 + 0.4*GenomeAnalysisEngine.getRandomGenerator().nextDouble(); }
diff --git a/java/test/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantRecalibrationWalkersIntegrationTest.java b/java/test/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantRecalibrationWalkersIntegrationTest.java
index 9267276fd..052f4ce4b 100755
--- a/java/test/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantRecalibrationWalkersIntegrationTest.java
+++ b/java/test/org/broadinstitute/sting/gatk/walkers/variantrecalibration/VariantRecalibrationWalkersIntegrationTest.java
@@ -25,9 +25,9 @@ public class VariantRecalibrationWalkersIntegrationTest extends WalkerTest {
     }
 
     VRTest lowPass = new VRTest("phase1.projectConsensus.chr20.raw.snps.vcf",
-            "920b12d7765eb4f6f4a1bab045679b31",  // tranches
-            "41bbc5f07c8a9573d5bb638f01808bba",  // recal file
-            "d9aa7a0f8fb886df4394f1636605adca"); // cut VCF
+            "d33212a84368e821cbedecd4f59756d6",  // tranches
+            "a35cd067f378442eee8cd5edeea92be0",  // recal file
+            "7259b7daefe57b11ae9e537e38569160"); // cut VCF
 
     @DataProvider(name = "VRTest")
     public Object[][] createData1() {