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My numbers from car to car test to test are consistant... is that testing it on the track simultaneously or are you comparing the track to the street?
In any event my experieince has been very positive comapred to the earier versions.
You may see .3 of a second difference but at least it is to the worse.
I would agree may never as precise as at the track but in terms of seeing mod differences and for a means of evaluation it's the best bang for the buck...
Again i'm happy with the performance...beats a stop watch in one hand and a shifter or the wheel looking at the speedometer in the other