Depending on what I use for for bagging materials, I'll get different surface finishes on the O.D.  I usually lay two initial layers at once then remove it from the mandrel and continue my layup schedule.  So I use peelply until I get to the final step where I will use a release film.  The I.D. is maintained perfectly with a polished finish.  If I needed to maintain a certain O.D. then I would make a split mold or just compensate by the layup thickness on a smaller tube.

Sorry for hijacking topic for a one question, if you dont mind, please explain how do you use compressed air to remove laminated carbon tube from metal mandrel ?