The 4 point rule is working 
Agreed. My frustration was I had the does and I have fawns (3 this year alone) but the bucks just were not visiting my cameras. Thse bucksy are really smart. I'm no expert but its taken these 3 years of steady feeding and lack of disturbance to make them feel safe enough to come to the feeders during the daytime and stay for more than just a few minutes.
Of course they've grown up in the area too. Familiarization.