The Spa set-up I posted was quite extreme, to make it more stable reduce the front camber. A start point is -3.3 deg, giving a nice compromise grip vs camber thrust. Adding more negative camber would only add more thrust making the car more reactive at steering inputs.
With this car is more important to stay on throttle mid corner keeping the momentum than to have a strong corner entry.
Thanks matey that's great information and thanks for sharing the setup. Yeah I've been racing cars like Formula Extreme and Indycars for the last few days and it was taking me longer than usual to get back in the zone with this car! I agree it's totally all about momentum with the mx5 cup car Having said that though, throwing the car into Maggotts and Becketts wasn't fast but it was fun!