Well it's been a fair while since an update! I've recently tried a floureon 5500mah 4s after a mate has been using their 3s batteries with no complaints. So far so good, lasts ages and very punchy too, impressed for 30 quid. Also bought an 18t pinion but rounded my grub screw on the one already fitted! Annoying. So any tips on getting that off would be appreciated. Last of all a set of barely used tarmac wheels and tires were bought for cheap, looks good fitted, need a dry day to test em now!