My brother has been in a club for over ten years with a pretty liberal harvest on just under 300 acres. Five years ago my employer leased the adjoining 900 acres. We only take does and Bucks with at least 8 pts. My brother and his members this years took their biggest deer ever. He's now become a believer after years of saying it wouldn't make a difference.
It took us five years but man, what a difference if you just let them grow.