remember on turkeys getting a complete pass through is not your main goal! Pinning the wings is. There is 4 other shots that are deadly effective on the big bird, one of the other is along the lines of shooting above the hip. I've heard it works well but have yet to experience anyone doing it. The head on, center of the back, and the base of the tail in strut shots are the other three. If you are not leaving the arrow in, employ the use of a string tracker!!!

I am not into mech heads so I cant help ya there.

Also dont get wrapped up in the KE as it is over rated as pertaining to penetration!