I get you there, but for most people, especially in a hunting application you are dealing with three weights, 85 grns, 100 and 125, or somewhere in between there. That little of a weight difference really doesn't effect spine that much. And if you went any more severe in either direction it may effect your FOC so much it wouldn't be worth doing.

Last time I went to my local pro shop I didn't see any 220 grn broad heads on the shelf. As a matter of fact most pro shops don't even carry target nibbs because they are geared towards hunters, not target archers. Where I live if you want anything fancy or target oriented you are ordering it from somewhere. I mean some carry some target stuff like nibbs and the such, but the selection is not that great.

I get what you are saying, just don't think it applies to the average guy. Know what I mean?

Paul