I, an unsponsored racer have put together one of the rear ends you guys speak of, the one with the bk2 outdrives/xxx tranny, cr block and the outer/inner deal. I must say I liked it, But found it rotated to much mid to exit corner, Which can be compensated with many things, I think Losi is definatly moving in the right direction. And when they find where they are suppose to be, I will no doubt try that car and see if I like it.