Bought RCHippie GTP, who btw is a great guy to deal with. I got to say that he dialed in the car perfect. Doesn't even looked like it was used much either. Anyways, I started with 1512 2y with 51/20 on 6s A123. I had to set the brakes on 20% on the Losi 1/8 esc. Car tracked straight like an arrow. Turned around and dropped in 1515 1.5D with same gearing. The power is insane. I break the tires loose and batteries warm up pretty quick. I'll use this setup in the Bracket dragrace soon. It's gonna be fun.