Missed on this combo?

He is right, even though the quench pad distance has not changed, the area has.
Do you understand why a quench works or what it is?
Well here is my version:)
That small space squeeze or create a fast moving chunk of air, caused turbulence in the bowl. Now i have been telling you all a long that Turbulence is BAD BAD BAD in the port, and even as it enter the combustion chamber. But when the piston is heading to TDC and there is some poorly mix fuel, Turbulence can help mix it all together better.
The fast running air from the quench, expanding into the combustion chamber allso causing a cooling effect.
Kind worried about you shaving these heads.
Haven't got the time this morning to explain why. will elaborate latter.