I just bought G-TECH PRO-SS .... How accurate are they?Are they hard to install.I will probably get it delivered by the end of the week.Any advice would be great.Thanks Bruce

 

Trying to get by till next track season?

 

I live in Florida...Right now is track season...LOL in the summer its too hot to run..I got a good deal on this G-tech. I want to see how accurate it is.I will be going to the track after Xmas.Just curious if anyone has ever used one.