CR and pump gas question

There certainly is a lot of experience out there that says that AL head material IS an aid to fighting detonation. And I notice one post that says it is on the bottom of the list of detonation fighters (but not off the list), which is plausible to me. I am going to continue to run with the commonly accepted idea that AL is an aid to fighting detonation until I can find some research that nixes that idea. That last research article I referenced above, that gives evidence of slowed combustion with mixture heating, would support that. (I'll try to find that article in the next few days but if anyone cares to look back through similar threads here, I linked it before in a similar discussion in the subforum. No one appears to have taken that up when I posted it before....)