Did a bit of running today at my local club trying to find a well balanced base setup for this chassis for my local tracks. Made a few changes but one change was quite significant, being the screw between the top deck and motor mount. I found removing this with all the others in place gave a much better balance of grip front to rear. This was particularly noticeable in switchbacks (or s-bends) and hard braking while steering. If you race on asphalt, give it a try.