Originally posted by CANTONRACER:
G-tech are normally within a tenth or two with the ET measurement and within 3-5 MPH with the MPH measurement.
Provided you do 3 runs each way (6 total) and average them.
You CAN NOT just run one direction and call it accurate.
I agree they normally are within 1-2 tenths (under) and over-rate by 4+ mph
