Sometimes folks just like the look- or because there's no screw poking out, to get caught on things.
Other times, folks are under the mis-impression that the compression types "ground" better. My expereince is the opposite; the nuts are sometimes foung loose; I have never had a set-screw loosen up.
As for project specs...well, I can't help you there. Sometimes customers want compression, sometimes they want steel, etc. If it was spec'd, you are stuck with replacing them. Sorry.
[This message has been edited by renosteinke (edited 11-25-2005).]
