thinking about ordering a G-tech, anyone have one of them

[Unit 5302]

I agree, the G-Tech is worth the money. If nothing else at all, run it when you get to the strip see how accurate it is for your car to establish a baseline. Most of the time I've seen it being within 2 tenths (damn good) and high by a couple mph.

Still, it's an excellent tuning device. You should be able to track your progress.

If somebody belts out a G-Tech time, I'm pretty trusting in it. Problem is you can't scan a timeslip or anything like that to back yourself up.