Wolf's comment reminded me of the oft-told story about Ted Williams. Williams, of course, was a freakishly gifted athlete and was obsessed with the craft of hitting a baseball. Once, when presented with four identical 34-ounce Louisville Sluggers, he hefted them all and said, "This one is lighter than the others." As the story goes, it was, by half an ounce. For that matter, years ago I interviewed turkey calling champion Matt Morett. As we finished the interview he took several identical production turkey calls of the kind he used in competition and made a few yelps on each one. To me, they all sounded exactly the same. To Morett's expert ear, each was different. He picked one, said, "This one's got the sound I like," and gave it to me.