Firearm, just as a precaution, I would try see (at least) if you can get regular bearings for your clutch bell that would be great...but I kind of doubt it(I haven't seen oneof the HPI two speeds in a while because I [still
] have the OFNA 2 speed).
Also, once your needle bearing has gone bad, it doesn't get much better after you've fixed it up (cleaning and lubing it). When a needle bearing has been fouled up, it is harder to rotate, due to friction and heat which causes a lot of wear on the bearing. It seems apparent that your car has had this problem for a several runs (could be wrong). Even taken care of, this needle bearing could explode, melt or do other devilish things. When you have the chance, I would recommend that you replace the bearing.
(why did the rs4 ever come with this small thing... it is the cause of so many freak accidents to this vehicle...)
And about the clutch wear, I don't talk to other guys about it much, but the HPI racing clutch (or MIP clutch) last forever...
In contrast, my stock Mugen clutch shoes obtain obvious wear in 3 race days...its not bad, but definitely not great. I'm going to end up with the aluminum clutch shoes soon.