re: poor distances on the sportstracker, you'll notice that it doesnt follow the track exactly due to poor signal on the phone's GPS (would have been better with my bluetooth GPS but couldnt be arsed to set it up) hence why it reads the wrong distances. time is accurate on that one as it was manually pressed start/lap some of them aint accurate as they were set to auto-lap on the gantry, and with poor signal it didn't always do it exactly