Matt has two catfish baits in his tournament line; the bullhead and the channel cat. I haven't fished either, but I have fished the trouts, bass and a herring like bait (forget what it's called) from the same tournament series. I guess they're similar.
I can tell you that they swim well at slow speeds and sit upright (almost always) on the bottom. The ones I fished were all fast sinks (from the original tourney series). He also has some slow-sinkers out now, but I haven't owned or fished any of them.
Hope that helps.