I'm not too good at the science of archery so I thought I'd pose the question to those who understand such things.
Assuming an foc of 10% with a point weight of 75 grains in an arrow weighing 275 grains, how will a Bohning X vane shield cut 1.5 inches affect the flight of the arrow compared to the same vane 2.25 inches.

I hope that's clear and I hope someone can provide some insight.