coyotewacker,
Gee, thanks for the "correction." I wrote "petals" (not pedals) because that's what most hunters call them. And yes, I am personally quite aware of how they work, since my wife and I have used Raptors in calibers from .224 to .308.
I would disagree with your statement about monos that lose petals (or blades, or leaves, or whatever somebody might call them) penetrating deeper than bullets that keep theirs. In my experience, in both game and "media," it depends on various other factors, including how much remains the frontal area of the remaining shank. Quite a few bullets that have lost all their petals end up expanding slightly anyway. Plus, there's the fact that bullets retaining their petals weigh more, which has some effect on penetration, though it's not the only factor, as many hunters assume.
