I switched to carbons for last hunting season.
Wanted to try a 10 gpp arrow out of a 45# bow.
Ended up with some 500 spine full length beman bowhunters and 175 grain VPA-3's.
Got my first trad deer with that setup this last season too. At 18yds the arrow went in to the feathers.
I paper tested that setup and had them punching perfect holes.
Since the season is over I decided to play around with some heavier tips. I wanted to have some more confidence with penetration.
I tried some 300 grain tips. Groups tightened up, target wobbled more, but the traj is a bit more rainbow like.
What is amazing to me is when paper testing I'm still poking great holes!
A change like that would've had me looking for higher spined wood arrows for sure.
I know a cut to center bow will let you get away with more but this I found to be quite a surprise.