Congrats to you and your nephew.. To try to lure the big toms in, you could've tried to used a full strut gobbler decoy with a few hen decoys. That may have challenged one of the those gobblers that had hens over to your set up... On Primos' TRUTH 17, they hear turkeys gobbling at 4:## something in the morning. I think it was at least 2 hours before daylight. They made it sound like they had been gobbling nearly all night...A half hour before legal light is not uncommon. Good luck on y'alls next hunt.