I tend to agree about the standing corn, food and cover. Acorns usually offer deer cover but no where near the amount of avaiable food. If you have an oak flat that is covered with acorns that's one thing but if it is just a couple of oaks here and there you may want to get near the corn.

Another thing I'll mention is as much as I am dying to hunt and I normally would be hunting right now but my NC land I have not hunted this season so I have to wait til Oct 4 for VA, anyway as much as I want to go even when the season opens I will ony hunt perimeter stands ie field edges or just inside, powerline right of ways, old trails, logging decks, easy access creek bottoms where I can walk in on the creek, etc.

The main reason being I don't want to alert any big bucks I'm there I don't want to intrude "too" much. And from those stands I can usually take a doe or something and do a little "recon" of the area, almost like observation stands. Around Oct 20 or so I will start venturing further in to some of my better stands near bedding areas, in the marsh, etc.

I only mention it because it sounds like you guys are hunting a ton and not really seeing the bucks you know are there. It doesn't matter too much if you know they are there, what matters is if they know you are.