I know a major issues with wiped cams is guys Dont know how to start a fresh engine. I see guys with dead batteries, distributors 180 out, old fuel or low fuel, trying to prime and engine by turning it over instead of the right way, etc, etc.
Like the guy's on the performance TV shows. lol They seem to not waste cams when they run into problems during the initial start.
I've seen them crank and crank on those shows. lol