A couple years back, Tady started to make all their jig molds only from masters that produced ones that swam. Some stores might have a few of the varying old ones way back on their racks still. For the most part though, you'll find jigs that all look alike and swim equally well--check the Tady stamp--same place on the jig each time. I do remember when it was a pain to find a real kicker. No prob with that now.

Big Hammer Swimbaits-Hammerhead Jigheads
www.swimbait.com
Pro-Cure Scents
www.pro-cure.com