Thanks. I just ran into the dilemma of running 5s on the MM esc. Unfortunately, I just realized this. I have heard people being successful with this set up, but I'd rather not risk it. Now I can just run the True-rc 4s 8Ah pack with the MM and 8xl, or wait for the MMM which I hear is actually going to be released earlier than anticipated... and then I would run 5s with it.