My dad and I both use NAP spitfire mechanicals. We use the exact same heads as we do for deer.

Slicendice asked " If it is advised to have 55lbs+ of KE for deer when using mechanicals, is this recommended for turkeys as well? " . My answer is no, you do not need to have that much KE as turkeys do not have the MASS or BONE STRUCTURE to require that much KE.

Back to the mechanicals, the spitfires are 3 for 3 on turkeys with no distance traveled (max. 10 feet) after the hit. Now both my dad & I also include an arrow arrester on the shaft of the arrow to stop the pass through. This does not effect the arrow flight in any way for us. We both use the " Zwickey Scorpio" but there are many different devices out there that do the same.