I did the crawdad thing back a few years ago, they were local crayfish not Louisiana (can imagine passing up a fresh pot of jumbo) mmmm... neways it was mixed results crayfish IMO aren't worth the effort in collecting for tautog... you'd be better off with what ever local shellfish is available at the spot your fishing at... you'd be surprised at what tautog eat..., mummies, squid, anything with a shell, diamond jigs, during mating season I've caught these beasts pencil and polaris poppers while trying to entice schoolies.
IMO the definition should be-
Tautog: def: (Noun, Adjective) 1. A thick skinned fish that is native the North Atlantic Seaboard. 2. A powerful fish that is pound for pound one of the strongest bottom dwellers in the Atlantic Ocean. Also known as the Poor Mans Lobster. (Adj): Holy tautogs batman, For a Tautog that is one strong tautog, Hey why did you tautog me? Lets go tautog fishing and hope we can catch some Tautogs!
Ok I’ll go finish my coffee now...