Anyone have, seen, considered, or know anything about these? I'm pretty interested in getting one, it'd be kinda like having your own little dynometer. Except I'm sure it measures crank horsies but still. You can tell what you get from doing different things. To me I'd love this cuz I like to tinker and tune my car and it'd be nice to see actual results rather than my ass-o-meter telling me what I gained.