RE: Shock calls don't work - never found a roosted bird
I would scout before the season if at all possible get there before sundown or before daybreak and listen and observe if you see turks around flyup/flydown time note where these birds have been seen go in there and try too find there trees look for droppings and feathers around large trees. get on tops of ridges and listen i do not know why you cannot get any to shock gobble try a peacock or woodpecker