when and arrow hits a target (wether it be a deer or a target) the arrow makes a snake motion as it enters what you are shooting. when I mean by snake motion the arrow actually bends... a bigger diameter arrow will make the arrow not bend as much.
Is this an assumption?
Doesn't this snake motion that you are speaking of have more to do with deflection then arrow diamter?
Would a 2512 with a spine of .321 have less snake motion then a 2317 spined at .297 or a 2419 spined at .268?