David, don't run the front belt too loose or you may loose some top speed because of the belt rubbing the upper and lower chassis plates. Check if the flat side of your belt starts to look different, hard to explain, well, not new.
Otherwise all OK. I won the mod class this weekend. No problems with the car. My set-up is described here somewhere if your interested, it's pretty close to Teemu's, but anyway, if you like an aggressive car you may like it.