I just got a CRT .5 and so far am loving it. It drives soooo nice, and really makes my Rustler seem bunky. The revo doesn't even drive nearly as nice. Very clean and simple layout too. Easy conversion. I think all the diffs are 1/8 sized (at least close to it) and should handle quite a bit of power. I drove a MT2 a few times (nitro) and didn't like it much. CRT all the way.