When hunting from one of my DB blinds I use a bow set at 65-70 lbs and a huge mechanical, like Rocket's sledgehammer. I want to inflict as much damage as possible...these are tough birds!

When hunting without a blind I use a different bow set at 55-58 lbs and a 'lesser' mechanical, sometimes with a adder point behind the broadhead, like NAP's Spitfire. At this poundage I can draw my bow slowly and hold at fulldraw much longer.

Location is everything when it comes to taking turkeys with a arrow. Don't think just because he's got a arrow in him that the game is over. I've lost two longbeards that flew away with my arrow, so know that he can, and will, fly away if the shot is off.

Here are 3 BH's I've had success with.
* Rocket Sledgehammer -150 grains w/3 1/2" cut
* Rocket Hammerhead 4 blade -108 grains w/2" cut
* NAP Spitfire -100 grains w/1 1/2" cut ...adder point weighs 25 grains