Harris - not that I can tell. They all smoke extremely dry with perfect air flow - same for the weaver, Batson and joe nelson pipes. Other more disceerning folks may tell you that they can tell one from the other, but not this guy. Truth be told, I have only smoked one of the four Cookes so far. I know that is blasphemy, but I just haven't had the time lately to devote to breaking in a new pipe. When I am working it is just far easier to grab a pipe that's already broken in. I want to savor the break in, and that takes time.
Maybe, dare I say it, I have too many pipes.