Marlin, I have harvested 3 bucks from calling that were 3.5 years of age or older, and called a total of 6 into bow range, 2 of them within 15 yards. One of them I called back in 4 times over a 2 hour period but he never gave me a broadside or quartering away shot, always facing me, the second buck, I called into 40 yards and he stopped and stayed for 15 minutes, when he finally decided to come the rest of the way he walked right under my stand but it was too late and also too dark to shoot. The third buck was comming straight in until he saw the new decoy I bought the day before and made a sharp turn to his right and walked to within 3 ft. of it, completely broadside 20 yards infront of me but there was a tree completely blocking his vitals, he stood there for a couple of minutes before he rammed it and took off running. The other 4 bucks I harvested were 2.5 year' s old including the buck I shot last year in my first year hunting in OH. The problem isnt calling mature bucks in my area, its finding a buck that is 2.5 years of age or older, here in my area, we harvest 80% of our 1.5 year old bucks.(Until this past year anyway). If calling works here, with the tremendous bow and rifle hunting preasure and also our out of wack buck to doe ratio I think it will work anywhere. Pike