Don't fall in love with the sound of your own calling. Turkeys have natural curiosity that can work to your advantage, if you let it. You don't need to constantly call to make them gobble all the way to the gun, unless you're planning on filming a TV show or something. Call sparingly & mix it up enough to keep them interested without giving away your position. Make them hunt for you. How many times in the woods do you hear a lot of real hen talk all coming from the exact same location anyway?
Jim