Index: firmware/App/Controllers/BloodLeak.c
===================================================================
diff -u -r660876bca7ae34f862ae9cc6feef9a30ec02fe94 -r5d9c5362b537331248dc592e05b6b016267eb6d3
--- firmware/App/Controllers/BloodLeak.c	(.../BloodLeak.c)	(revision 660876bca7ae34f862ae9cc6feef9a30ec02fe94)
+++ firmware/App/Controllers/BloodLeak.c	(.../BloodLeak.c)	(revision 5d9c5362b537331248dc592e05b6b016267eb6d3)
@@ -542,6 +542,7 @@
     BLOOD_LEAK_STATE_T state = BLOOD_LEAK_CHECK_ZERO_AND_SELF_TEST_STATE;
     BOOL areCommandsReady    = TRUE;
 
+    // Check to see if all commands in sequence have been responded to
     for ( i = 0; i < NUM_OF_EMB_CMDS; i++ )
     {
         switch( i )
@@ -556,6 +557,7 @@
         }
     }
 
+    // When all commands in sequence have been responded to, determine whether anything went wrong
     if ( TRUE == areCommandsReady )
     {
         // Enqueue the zero and self test sequence (Z->G->Z->Q->T)
@@ -585,6 +587,7 @@
             }
         }
 
+        // Pass self-test if entire sequence was successful
         if ( FALSE == hasCmdSqncFailed )
         {
             // Done with zero sequence, transition to other states
@@ -593,6 +596,7 @@
             bloodLeakSelfTestStatus                                 = SELF_TEST_STATUS_PASSED;
             state                                                   = BLOOD_LEAK_NORMAL_STATE;
         }
+        // If not successful, retry if we've not run out
         else if ( bloodLeakEmbModeCmd[ Z_EMB_MODE_CMD ].commandRetryCount < BLOOD_LEAK_EMB_MODE_MAX_NUM_CMD_TRIES )
         {
             if ( TRUE == zeroBloodLeak() )
@@ -603,6 +607,7 @@
                 bloodLeakEmbModeCmd[ Z_EMB_MODE_CMD ].commandRetryCount++;
             }
         }
+        // If out of retries, fault
         else
         {
 #ifndef _RELEASE_