I got my Slash 4X4 Ultimate last night.
Ran it with the std battery this morning and am impressed, I ran it till I kilt the battery which was about 30 mins.
At lunch I installed my balance charged Traxxas 5000MAH 11.1 3s battree. I switched modes on the esc to the LiPo setting but the esc light kept flashing green. I read the book over and over and tried to adjust settings and after a bit of playing with the multifunction switch I got it to run but it was sketchy as it would stop moving forward intermitt but would run in reverse and then foward again. I reset the controller and from my understanding the MF knob should control the steering sensitivity which has me confused.
The esc light was flashing green fash and constant which the book says is throttle trim is incorrectly set. I have the esc in sport mode BTW.