RE: Wow...I'm now getting frustrated.
Eh, don't feel bad. Lotsa time left. The warm weather has things kinda slow in my area to, southwest PA. I've seen some little bucks chasing,but that's about it. Big rubs are showing up, but I'm assuming it's nitetime activity with the warm days. It's gonna cool down this weekend, it should get fun.
1. You're food plot is basically a field right ? The big boys don't like to walk out in the open like that, I learned it the hard way. Try to figure out the prevailing wind of of that area, then hunt the down wind side of that plot, maybe 50-75 yards in the woods. I used to beat my favorite giant clover feld to death, hunting the edges. AFter the season, I always noticed lotsa big buck sign way off the field edge. So the following year, I hunted the woods, 50 yards on the down wind side of the edge. Scored a 126" buck, and saw a few others the rest of the season. I realized these bigger deer would walk the woods, favoring the thicker areas, and basically scent check the field, never exposing themselves to the open. Crazy, but it worked.
2. Hunt your bedding areas with caution. I usually don't play to close to them till I see some does come in heat. And most of all, try to find yourself 2 bedding areas, then set up in funnel area between the 2, catching patrolling bucks inspecting the bedrooms. Hunting the food sources has never really worked well for me this time of year, when chasing starts. Usually the does are so disturbed by the younger bucks, they don't make it there to relax and eat during shooting time. Find a secure travel corrider down wind of your food source, and set up and observe. This time of year, bucks will hit the easy runways to get from point A to B and not even pay attention to deer trails.
3. Different areas get hot at different times. Don't put your eggs in one basket, or one farm. Branch out.Once spot I hunt has bucks destroying trees and making scrapes, another spot 8 miles away is similar to your's...kinda slow.
Sometimes you gotta abandone conventional tactics to see the nicer bucks, as they don't behave like the younger anxious bucks do.