I think my love of the M04 is finally over. It seems they don't like brushless based torque. I've blown through at least 3 diffs in 6 months, even with limited track time and careful builds. Last night, I mysteriously melted the guts of the gearbox. The bosses the gear shafts are set into got warm and went all bell shaped. Bearings were good. Can't figure it out. Had enough.

The M05 was friggin outstanding though, so it's the go to for now. With the new, black carpet, setup has been simplified. Stock camber, yellow springs and 40wt all around.