Shark! Just wondering if you're still running mech brakes on your ST-RR. I tore mine down yesterday, and found that the servo tabs were cracked and they broke off fully. I would imagine it's because I have it mounted side on and the end sticks out into the mud guard.

I had a run with 60% motor brakes, but everything got quite a bit hotter than normal :( Running a 16T pinion, 50T spur and 6s1p LiPo on a Medusa 70mm 1600kv.

-Sid