I just went and put the stock 40 series tires on my Muggy and took it out. I couldn't get it to do anything without it cutting off. It was running ok with the MT tires though. I suppose that I traded one set of problems for another set. I don't know that I'm thermalling, but I think that I may be hitting the current limiter. I think that things will clear up when I go to 5S with a lower kv motor. I do have an 8XL and will try that tomorrow.

If all else fails, I'll just go back to the MM and deal with the cogging. At least at 9/46, the cogging was almost all gone. The sad thing is that I ordered a big 5S pack in anticipation of the MGM cure to my woes. LOL. I just need to work this out.