Thanks. You're right about the 1515. I'm looking at the tenshock motors right know, same dimensions as the 1512 and 6 pole. I'll use the 1515 when I switch to your sand paddles. Serum used a lehner basic xl or xxl, not sure which one.

I already have the mgm controller, and want to use 6s for max efficiency, so the mmm2650 isn't an option.

I'll be driving in the sand with this thing and want to try what works best for me, a very light setup, or a heavier setup with sand paddles. With my Muggy I've found that driving in the sand is pretty demanding on electronics.