if you calibrate for fast probe only, i will be very accurate, mine is fast probe only as i have found that most sensitivity issues come during slow probing.. seems it is something with the way the switch circuit on the platter opens and possibly slides drags in some scenarios causing rapid intermittent contact that triggers errors. I am getting 0.0001"+/- repeatability on mine with fast probe set at 10ipm. and using only fast/single touch.
