I'm wondering if a film that has loose take up, and is wound tightly, using a bench rewind, will eventually cure the problem?

A clean and a manual wind normally sorts it I find, as I've been going through a few films lately I've noticed rewinding on the projector with films I haven't watched in a while normally loose wind and don't fit on the reel so well,after a clean they are fine,Mark

I would say so too Robert, I too use rewinds for both 8mm and 16mm and never have a problem with loose film on the reel.

Thanks for the information Mark and Del; much appreciated.

Here's a trick with loose take up. Twist the film before encoring to the take-up spool. This is also useful with 16mm film which is slightly warped.

Someone else has told me this too Maurice, great advice.