This might be a fluke but the Tazzo was within a tenth every time and the mph was within 5 tenths so it's pretty good right out of the box, problem is....that it showed me running 8 mph over and a half second faster than I really was while still reporting a correct 60'. I'm just excited to get the wideband o2 sensor and log it with either the lockers scanning equipment or something Joby is working on. The lockers reports 10, 15+ frames per second which compared to our standard 0.83 fps is an AWESOME system.
I too one a trophy and in class while getting 6 runs in all for $20. Too bad the air was crap (84degrees and high humidity) but I was just starting to get my mph up.
Everybody at the track was running between 1 and 4 tenths slower than they usually do so no best times for me.