Driveability of high compression cars

[Enoch]

Can some of you engine builders answer a question for me? Reading this post made me think of a statement a friend of mine told me (he has been building motors for 30 years). He said that you could reduce or eliminate detonation by making custom pistons that will give you "zero deck height". Meaning that the piston at it's peak of rotation is perfectly flush with the deck of the block.
What I'd like to know is this, have any of you heard about this and why would it help?
Thanks, Rich.