I did not re-center the arm on my servo, but when they wheel is at neutral, the wheels are straight. The wheels also "swing" out equally to left and right. So the servo is centered correct i think.

Reducing the EPA in the left direction only limits the swing on the left turn, making it not able to turn as sharp, as when im turning right.

I bought the thing on modelsport.co.uk so i think i will contact them to see if they got any suggestions. I guess hardware failure is the only option, if any of the settings on the Tx cant counter the problem?

Thanks for your reply.