Joe, his problems aren't with food aggression towards people. It's aggression towards other horses AND the food itself!
Here is a short vid I took. It shows him throwing his head and pinning his ears at Epona, and since he has dutch windows, we just feed him through the window. At his ex farm, we had to enter his stall to feed him and he was taught that he was NOT to charge the human or try to knock the bucket out of his hands. AT THIS FARM, my son pours his grain into the bucket through the window, and he is not allowed to charge the bucket or knock it out of my son's hands. He is also not allowed to charge into the bucket while the grain is being poured. He must wait 5 seconds before gulping...
In the vid you can see him turn his head away from the bucket while it is being poured. So...the problems are with his eating habits themselves. What you can't see in the vid is him gulping down a huge mouthful of grain, nor does the vid show him throwing his head wildly as grain flies out of his mouth, charging at Epona through the bars, or kicking the wall....that all came later.
I am going to take a FULL vid of his feeding this evening, as the aggression comes while he is eating....I'd like some opinions when I post this vid this evening if YOU all think his aggression is over the top or more or less "normal".
Stay tuned for his food aggression vid this evening...
So to clarify, the aggression is towards Epona and the food itself.