well, i bought a set w/ an 8th tooth spread on the spurs. Its was way to much. So i went up to a 54t. on 2nd and 60t. on 1st. It worked ok, but personally i don't like the 0.8 gears because they always strip. I crank down on all of the screws, but they still manage to get out of alignment. I have never had the problem w/ reg. gearing. I would forget about the 0.8 gears(how long is the straight at the track you run at?) unless the straight away is like more than 200ft.
