Eric, I dont like losing the same battle twice! :lol: I do run a nine, and it is holding up so far. I also have an extra pumpkin for gear changes, but I wouldn't think about changing it at the track,I know other guys do it. I dont see that as any great incentive to run one. If I had it to do all over again, I'd put a quick change in mine, more than strong enough for any motor i'll ever run. And if I want to go from 1/4 to 1/8 mile gears I could do so super quick. Shucks, I might even have some paddle tires made, and go sand draggin. :shock: