I was replacing my stock valve covers on my 999 w/ magnesium ones. Upon inspection of the rocker and cam surfaces I was astonished to find absolutely no wear at all...nothing! My 999 is a base model, with only a full exhaust kit, PCIII and sprocket changes. I bought it w/ 6500 miles and have used Agip, Golden Spectro and Mobile1 ever since. It now has 11300 miles. I mean everything looked good-like new! I would have thought some wear would be noticable-maybe not at 11000 miles.
Anyway it's very comforting to know all is cool w/ my vertical cylinder-front valve cover inspection is next however.:think: