That's enough of Mr Bojo Rising (apologies to fans of The Doors).
Meanwhile, just to boost bumpkin's confidence, and to show that I'm not biased, here is some more ammunition for Norm with a couple of pictures of a Electra-X TOP-END failure lifted from the French forum. Year of manufacture unknown.
Cause also unknown, but the epicentre of the piston crown damage seems to be where the inlet valve head would be clouting the piston crown if someone had tried a perforance cam from a classic Bullet with a bit too much lift. It could also be a case of a half-remembered reference about retarding the inlet cam by one tooth and getting it wrong by installing the cam one tooth advanced.