I think I fixed the wandering rear end. I simply didn't add any weight. Handles beautifully and gives plenty of warning before letting go! Used the sports hard tires it came with... Thank you Ghostrider, you are a very good tuner!
Nice tune . it´s fast very fast, but it like to wag its tail so throttle control is needed, gearbox good and stable .
testet at midfield and it´s good for 1:07 sec