Here are couple pics of my Slash with 3S Maxamp lipo, MM5700 setup.
Run it couple times and really pleased with the reliability and of course the speed..
Battery and ESC are just slightly warm at the end of 20 minutes runs, motor a bit more, but planning to install a fan in there anyway.
Setup on the Mamba software is set as:
-no drag brake
-Punch control 60%
-Voltage cutoff 9.6v
-Gearing is 14/90
-Windshield cut off to allow air flow. Also rear part of the body cut much higher to allow warm air in the Battery/ESC area to disperse.
Driveshafts, diff and tranny all holding up very well so far. I still have to brake something on this truck.