Alumistrut Black Magic. I have found that the aluminum calls allow me to vary the pitch of my call from soft and sweet to super-high pitched. Works in all weather, easy to learn and use, and usually I can find an interested tom. Now, having said all that, I also carry about a half dozen to 10 other calls with me. Box calls, mouth calls, push-pulls, crow, peacock, gobble tube, coyote howlers, and some I can't think of right now. I've had occasions where a gobbler wanted only a certain side of a certain box call, or a particular striker on a single slate. I would hate to only have one call on hand. My buddies laugh as I load up my vest, but usually by the end of the day, something in there has done the trick.
God bless,
encoreshooter