Quote: "when a tom comes in to a sweet sounding bird, he wants to see something where hes expecting something to be ..."
One reason you don't want to set your dekes too far out from your setup location ... not natural to hear a bird at the clearings edge and see the deke 40 yards out ... just not natural. You also don't need many dekes. At most a couple of hens and a tom or jake deke is more than enough.
That said ... usually I try to setup so when the tom shows up, he is less than 40 yards from my location and harvestable immediately if he changes his mind about coming in. When you can do your setup like that, a deke isn't really necessary at all.
I've also called toms multiple times well over 600 yards across open fields without the use of dekes. More important to trust your camo, limit your movement, call sparely using the good old turkey calling rhythm, and use his natural curiosity and sex drive against him. I've even called a tom in while sitting on a wide open slope with my son ... harvested the bird at less than 10 yards .... now that's fun there!