I have found that the birds are not really gobbling after they leave the roost. Unless they are jakes, then they are going crazy all day.
The only cool story I have is I completely blew the head off a turkey yesterday. It was only about a 7-8 yard shot so I guess I shouldn't be surprised but I have never seen that before. I guess 2 3/8 ounces of shot will do that for you.
I also started using a jake decoy this year at the suggestion of a friend and I was surprised at how effective that is compared to hens only. My brother had a big tom pecking away at the jake and then tried to mount one of my hens. He had to wait and shoot so he wouldn't hit my dec.