I've been EXTREMELY fortunate in my 2+ years bowhunting. I've taken a 3.5yr old and a 4.5 yr old buck. I still think I'm an opportunist....but I also feel like I must be doing something right, too. I'd LOVE to concentrate my efforts on just hunting mature bucks. The herd dynamics here won't allow that. I have to thin does....and doing so on the small parcels I hunt will likely thwart some mature bucks from this area (my intrusion).
From stand.....I've seen 2 mature bucks in my hunting area. They will both be on my wall by next Summer.
We'll see what the future holds.