Check out the Twisting Creek booth (#63) for sure, Jeff makes some outstanding calls. You'll find other guys hanging out there as well, probably Scott Witter (culpepper), Tim Bullock (no bull custom calls), Steve Torman (makes killer strikers), with McKamey who knows who else, haha.
Don't miss SS Custom Calls, booth 1058, they make some killer calls.
Irving Whitt, booth #45
Ralph Permar, Lamar Williams, Marlin Watkins, Mike Lapp, Herb Hornstra, and Niles Oesterle will be hanging around the Tools of the Trade booth.