Are you still holding out for only mature bucks?
Without a doubt. With such a high population and so many bucks running around there would also be a higher portion of mature bucks to go along with all the yearlings.
There would also more than likely be expanded bowhunting options to get the herd back in check. More time and more chances to take mature animals. No need to slaughter the the young naive immature deer. IMO the yearling buck is the easiest deer in the woods to shoot.