rgcainmd, I don't know what his doctors recommended, but ours, at the beginning, set our target threshold super high and wide. Target was 150 (ugh!!) and the range was +/- 30 -- which meant Bolus Wizard would not suggest a correction unless he was over 180. This was just a "trial" set of numbers, but the two weeks we spent with those awful targets raised my son's A1C from a 7.5 to a 7.8 at that time.
So I'm guessing he's referring to the settings in bolus wizard and when it will recommend a correction.