IMHO, it's all a personal thing and i consider small feathers and vanes as fine for target archery where flinging shafts beyond my comfort zone hunting distance is the norm, but not on my hunting shafts. i want a 10-12gpp hunting arrow to straighten out as soon as possible. i want that added edge of more steerage when/IF the operator (me, the trad hunting archer) makes a release error.
i want to stabilize that broadhead shaft as much as possible, and speed is not an issue. i'll use either 5/8" x 5-1/4" full helical custom burnt shield 3 fletch or a 1/2" x 4-1/4" custom burnt 'nanner 4 fletch.
it's fine to one hole a bare shaft into a range butt, but another story at 6:30am first light, 38F in a cold drizzle, in full hunting regalia and yer attempting to thread a shaft 'tween some branches into a hog's side from 15' up in the air.
it's all good one way or another, and ymmv.