No. Your explaining exactly the way I understand it. My point was the way we measure it. In respect to a guy says he's got a .035 quench engine. I think we all figure he's got .035 from piston quench area to bottom head surface.
Right. But what I am saying is that milling does affect the quench overall. And can give you BETTER (or worse) quench. Not necessarily tighter. The quench "chamber" can play a role just like the combustion chamber. I'm not saying milling the heads give's less or more quench. Just better or worse. Which then works with the combustion chamber to create the "squish" and give you the power you want. Improve the quench, you improve the squish, you improve power, responsiveness, detonation, everything.