I did the first two e.max and have a surface that is removed with white glass beads already in the first phase of blasting. A part remains attached and remove after the passage in Invex. What puzzles me is the rough surface that remains, even at the margins that I have to go through the rubber and risk in a under contour. This roughness is normal? Also inside the crown, perhaps worse. Under the microscope 16x seems that the coating has crumbled like a little (this, however I've only seen it inside the crown). I used the debubblizer, the representative told me that some tech. use it. I think the mistake is the one. Mistake and should I look elsewhere for the solution? Help me to farvore. Thanks in advance. Oven ep 3000 brand new. LT 200g program.