Index: firmware/App/Controllers/BloodFlow.c
===================================================================
diff -u -r186bc3aa917f8626f5eab6e5e8bf9cddae03ac2c -rae5ed7d669400cff089ab54b8fe77a391f8ad194
--- firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision 186bc3aa917f8626f5eab6e5e8bf9cddae03ac2c)
+++ firmware/App/Controllers/BloodFlow.c	(.../BloodFlow.c)	(revision ae5ed7d669400cff089ab54b8fe77a391f8ad194)
@@ -119,10 +119,11 @@
 
 #define PUMP_DIR_ERROR_COUNT_MASK           0x3F            ///< Bit mask for pump direction error counter.
 
-#define BP_FLOW_ALPHA_Y_INTERCEPT           1.218           ///< Y intercept used for alpha flow coefficient calculation.
-#define BP_FLOW_WEAR_A_TERM                 0.000000007474  ///< A term used for wear portion of alpha flow coefficient.
-#define BP_FLOW_WEAR_B_TERM                 0.0006053       ///< B term used for wear portion of alpha flow coefficient.
+#define BP_FLOW_ALPHA_Y_INTERCEPT           1.2163          ///< Y intercept used for alpha flow coefficient calculation.
+#define BP_FLOW_WEAR_A_TERM                 0.000000005665  ///< A term used for wear portion of alpha flow coefficient.
+#define BP_FLOW_WEAR_B_TERM                 0.0006125       ///< B term used for wear portion of alpha flow coefficient.
 #define BP_MAX_ROTOR_COUNT_FOR_WEAR         25000           ///< Maximum rotor count for determining wear of the cartridge (negligible affect beyond this threshold).
+#define BP_FLOW_CORRECTION_FACTOR           0.9             // TODO - why do we need this
 
 /// Enumeration of blood pump controller states.
 typedef enum BloodPump_States
@@ -352,7 +353,7 @@
     U32 rotCnt  = CAP( r, BP_MAX_ROTOR_COUNT_FOR_WEAR );
     F32 wear    = BP_FLOW_WEAR_A_TERM * (F32)rotCnt + BP_FLOW_WEAR_B_TERM;
     F32 alpha   = wear * artPres + BP_FLOW_ALPHA_Y_INTERCEPT;
-    F32 flow    = alpha * BP_ML_PER_ROTOR_REV * rotSpd;
+    F32 flow    = alpha * BP_ML_PER_ROTOR_REV * rotSpd * BP_FLOW_CORRECTION_FACTOR;
 
     return flow;
 }