if you do have so much experience building motors, then you should be well aware that compression-induced detonation and preignition caused by a hot part in the combustion chamber are 2 totally different things.
Having a smooth combustion chamber does nothing to 'help' higher compression....as to the 'angles and edges' you talk about.....most everything uses smooth, flowing shaped not prone to hot spots that can cause pre-ignnition....if you do get a carbon deposit or something thats glowing and causing pre-ignition, the compression ratio wont do a thing to help it, its just gonna pre-ignite no matter what. If you could just smooth out the chamber and run super high compression, why dont we have superbikes with 15:1 ratios?
I'm not calling you an idiot, but you obviously need some help with the differences between pre-ignition and detonation. And I've been building bike motors for 10 years now, with many race winners using motors I built. As to the smoke and mirrors, I dunno where you got that from as everything I have said is fact.