I heard a lot of good things about Knight and Hale' s Ol' Yeller. Have one on order, cant wait to check it out. Here is a link to a web site with a write up of the call, and some sound files that were made on one.

http://www.turkeyhuntingsecrets.com/...lyellar-kh.htm

For first hand knowledge, called in my first bird last year on an HS Strut AlumiWitch. On public land, heard a distant faint gobble, called in two longbeards from what seemed to be a mile away. Very impressed with the call.