Mr Wilson, I must say, you have some very nice looking buggies.
as for the caps, I've been running one novak 2700uf cap per esc my MM's and they reduce the heat by a good 20* F. I have two set-up this way and two that are not. The two standard ones only run 540S size motors and still get hotter than the modded ones running Neu 1512 motors.