Definitatly try a new set up. I agree,leave the decoys out. Sometimes the full strut turkey will detour the gobblers, especially if they have had their ass whipped before. They are there for one reason and that is to breed hens. I aslo believe that a gobbler can remember a call from year to year. Change calls and call sparingly. If the hens get fired up then you fire up, forget about the gobbler and work on the hens. If the hens come so will the gobbler.Maybe you need to wait until later in the morning, when the hens have left,if they are nesting. Don't give up, if he does the same thing and not comes in then you know that you need to change your set-up. Persistance will pay off. Good Luck