RE: grunt call vs. doe bleat
I got a small 8 point this year because of the can. He had wandered off after leaving a rub on a tree. He was gone for about 5 minutes and I hit the bleat can. He came back on a trot with his nose on the ground. 15 yards from my stand broadside when I shot. That was on November 12, peak of the rut around hear in MI.
In mid October I called two does back after they ran off by using the small can. It was interesting to see that work.