Cool thanks I realise there are two parts to how much steering. One is per track with end points and rates set accordingly the more important one though is what is needed to dial in your initial end points to deal with the geometry of the car's steering setup.

Because my servo horn isn't quite centred I end up with a period of servo travel that provides no more steering travel at the wheels. This is more on one side than the other. I'll try and get the servo horn centred and work from there again.

Thanks for all the advice, just trying to get the car into the best place it can be to give me a chance to improve.

I'll post up some shocking wiring pics later, but I'm definitely going to shorten servo, esc to RX, motor (direct solder from ESC to it) and battery to ESC..