diff --git a/LSL2/STPROC/QA_SERVICES.txt b/LSL2/STPROC/QA_SERVICES.txt
index 23bb1f4..0439aa7 100644
--- a/LSL2/STPROC/QA_SERVICES.txt
+++ b/LSL2/STPROC/QA_SERVICES.txt
@@ -308,8 +308,8 @@ Service CalculateThickData(Datapoints)
     Max          = DataPoints<0,1>
     NumSigPoints = 0
     For each DataPoint in DataPoints using @VM setting Index
-    // Data points 10, 11, 12, 13, and 14 are not significant for calculation purposes per management
-    Until Index GE 10
+    // Data points 11, 12, 13, and 14 are not significant for calculation purposes per management
+    Until Index GT 10
         TrimData = Trim(DataPoint)
         If ( (TrimData NE '') and (TrimData NE 0) and (TrimData NE '0.0') ) then
             NumSigPoints += 1
@@ -3892,3 +3892,4 @@ ClearCursors:
     
 return
 
+