has anyone ever heard of or used one of these scanners before.its a basic laptop deal that gives u 1/4 mile 1/8 mile 0-60 etc etc.....scans for codes and has alot of other options on it....anyways i was wondering how accurate these things are....after 3 attempts on a long straight hwy it said i pulled 13.8 secs @ 96.4 mph as my best run....does that sound about right with the mods i have in my signature?