Calling to a gobbler on the roost is one of the best ways in my opinion to land yourself a gobbler. I will get set up in the direction that he is probably going to because of preseason scouting. If the real hens are going in the opposite direction. Then guess where he will be. I like to set up about 70 to 80 yards from his roost tree. I will start with some soft tree talk, not calling too loud and refraining from yelping. As daylight starts and I feel that he is gobbling good and ready to come down, I will use my gloved hands to mimmick wing beats. I will then give the fly down cackle to let the troops know that we are ready to move out. After doing so I will let out several more wing flapping episodes and make hitting noises with my hands on the leaves. When the old Tom figures out that the troops are moving. He feels compelled to join the group. With this episode I can sound like a half a dozen or more turkies heading out. If that is the way that the flock was heading in the first place or you fly down before the real birds. then you got em' nailed. Thats were a little preseason scouting comes in. Timing is important here. If you don't know the general direction that the turkies will go and it happens that they will feed off in the other direction from where you are at. That Tom will go with them for sure if he can see them and only hear you. I have had this work time and time again. If things get too quiet during the day I can generally spark a shock gobble with a combination of cutting and an intermittant jake gobble. Learn the language and know what to use and when and it will help you decide if you are calling wrong or not.