hey mark
setup changes i altered a couple of things i did run a one way layshaft in round one it was ok but was difficult off power. i locked that for round two i moved the rear shocks in on the lower arm to make the car sqaure up faster and put a 2mm shim in the front akerman to generate better mid corner no in put steering (arc). the car was still laking off power steering but very good for round three i changed from 4deg rear toe down to 2 deg rear toe this achived the off power steering required but the on throttle forward traction wasn't as good i know where the car is lacking and it will be sorted.
for me these are very minor changes what i am expecting as the tyres shape the grip will get better and the car will have more grip front and rear but for new tyres all good.
stu