Dave, Neither I nor Walter said that any way is right or wrong. My point is that the effort required to go to the nth degree is disproportionate to the results, sanding the tubes, in terms of glue adhesion, cannot be wrong, but it could be a waste of time? Last year, I made over 3,000 pens and I think I can remember one or two blanks that were ruined as a result of poor glue distribution. Would it have been worth sanding all the tubes? No!