Thanks cool, that was exactly the information I was looking for. They have downloadable data sheets for each motor that is VERY informative! I think I will probably end up with a Lehner basic 2400 or 2800 motor and the 9920 ESC.
I posted my next question in the Traxxas forums, but haven't had much luck. I was looking to mount the shifting servo where the empty servo slot is. However, I need an angled mount so the servo is vertical, not angled. It has been suggested to use the servo mount from an RC10GT and dremel the angle in, but I don;t particularly like the fit. I was looking for something like what Dafni used on his BL Revo, or
this ,but they have been sold out for some time now. I tried using some aluminum bars bent to the right shape, but I am not satisfied with that either (I know...fussy). Any other ideas?