Our group harvested 7 anterless deer and 6 were BB. We hunted archery, early ML, rifle and late ML and only had a chance at one other legal mature doe.
No one can tell you how letting a small buck live through another year reduces antler size.
No one ever claimed that would happen andit is silly for for to claim that they did.
Deer grow bigger antlers in areas with fewer deer.
You can't cite one study that supports that claim.