I was actually planning on making a full write up from a shotgunner/gun-smith's perspective on this subject, with pictures, graphs, and shotgun philosophy. I am only going to post here to say that I agree with the above, but I'm still going to make a separate thread with my write up as I believe it will get lost at the 21st comment on this thread. Please check out the thread when I'm finished, I'll link it here at that time.