The MMM isn't nearly as water resistant as the MM, I lost two MMM's last winter from a tiny little bit of snow getting in the esc... I was only running on the road, not baja'n the deep snow, when all of a suddin, magic smoke! Then the very next day the same thing happened (with another new MMM), magic smoke...
Meanwhile I can practally submerge any of my MM's... Got one MM thats been running strong, year round since 2006!
We need REAL WATERPROOF 120-200A (CONT) BL ESC's and Rx's!!!!
/rant.