Sure I can see if RB has an update on a rear setup, np.
^Glad to welcome you to the BMW family! There's a very very long thread somewhere on here about a StopTech Trophy setup that lost it's finish. The Trophy setup looks like something that came off a GrandAm race car.
I picked RB because I wanted a lightweight racing setup for autocross to decrease rotating, corner, and unsprung weight.
I've been inspecting my setup very often and haven't seen a problem, so it appears the issue has been fixed. Obviously I'll be the first to share if a problem does come up, but so far my only problem is getting use to later braking points before turn-in.