RE: OS Camshaft plating peeling
Funny you mention ASP, I have an old ASP .40 with a tuned pipe. I bought it cheap off ebay and have had a fair share of flights on it. As of this weekend it gave signs of needing new bearings. Yet to pull it apart to check the bearings but last I looked it was perfect.
I'm yet to get it really humming but that will now occur after I buy some bearings for my other engines. Yes, I kill bearings because I fly engines to death. 2-3 hours of air time every Sunday (and often on Saturdays) will do that to ANY engine.