Oh my...you are serious about streamlining Poser! (just read your other thread).

3Dave is right....you want to keep the shaders....they are awesome stuff and you might just kick yourself later on if you trash them.

Once you get used to Poser, and wander into the Material Room, you'll see what all the fuss is. LOL! And when you do...check out BB's threads on such stuff as shaders, nodes and what not: he's da MAN where all that is concerned.