After taking quite a while to dial my truck in to our worn patchy grass track I've finally got it the best it's been with only some minor tweaks left to see if I can improve it and the two biggest recent major improvements have been the 2nd hand Exotek chassis I acquired from another 4x4 and putting 4 stock AE tyres on.
I never had much luck with stock tyres on my 2wd but on our surface and using 4wd they were great. Loving my truck right now.