Chris,
Repeat after me "you can never have enough calls, you can never have enough calls"
I can't say for sure, but northwood and I hunted tuesday, and set up not far from the roost. At fly down, northwood walked away yelping, and I followed behind him shaking the gobbler, imitating a jake. Within twenty minutes out popped two toms, unfortunately, so did two hens, and they stopped and strutted at 35 yards, I should note, we were using bows, otherwise, you'd see pics. 
Repeat after me "you can never have enough calls, you can never have enough calls"