Index: firmware/App/Modes/SelfTests.c
===================================================================
diff -u -r1e80e279a08e1915ff6e2e57a728e5a278ee67a3 -rcafffc2a7fe616af89dac2a5db0d9944bae76ac4
--- firmware/App/Modes/SelfTests.c	(.../SelfTests.c)	(revision 1e80e279a08e1915ff6e2e57a728e5a278ee67a3)
+++ firmware/App/Modes/SelfTests.c	(.../SelfTests.c)	(revision cafffc2a7fe616af89dac2a5db0d9944bae76ac4)
@@ -1080,8 +1080,8 @@
 
     if ( ( TRUE == didTimeout( pressureSelfTestStabilityStartTime, DECAY_PRESSURE_SELF_TEST_TIME ) ) )
     {
-        arterialStabilityDiff = fabs( getFilteredArterialPressure() - peakArterialPressure );
-        venousStabilityDiff = fabs( getFilteredVenousPressure() - peakVenousPressure );
+        arterialStabilityDiff = fabs( getFilteredArterialPressure() - decayedArterialPressure );
+        venousStabilityDiff = fabs( getFilteredVenousPressure() - decayedVenousPressure );
 
         if (arterialStabilityDiff < STABILITY_PRESSURE_DIFF_TOLERANCE_MMHG && venousStabilityDiff < STABILITY_PRESSURE_DIFF_TOLERANCE_MMHG)
         {