For those looking and wondering about speed....

The VXL E-Revo with (2) 1200 NiMH batteries connected in parallel runs the exact same speed as my Slash 4x4 VXL running a 5000 2s LiPo and a 17T gear.

I wanted them to be as equal as possible when my son and I run them, and from a number of runs we have taken neither one seems to pull an inch with that set up.

Just thought I would spread what I learned in case it benefits someone.