S&R.......I too like to call to a tom while he's still in the tree. I learned that if I'm not one of the first, or the very first hen he hears, he'll often leave me all alone and wander off with his girlfriends. I believe that if I can be within 100 yards of that tom when he first sounds off the first gobble of the morning, I have a better chance of being the first lady he gets to listen to........maybe the closest. I've also killed a couple by literally mocking the hens whenever they tree call or make any other calls while still on the roost. Last season, I did this and 4 hens that roosted with the gobbler flew down at daylight and landed in a field 400 yds. away across a hardtop state road......then the tom flew down and landed 30 yards from my 870 pump. Game over. I guess I made the hens so irritated they wanted to get as far from me as they could, because in all my scouting of that spot, they never ever flew down to that particular field.