Quote Originally Posted by ac12 View Post
As with Ross, I NEVER use the spring clip in any of my reels. For me it creates more problems than it solves. I learned that you HAVE TO clip the film in center. If you are off-center just a bit, the film won't roll properly and may/will kink. And you have to be careful to not push too much film under the clip or it will not roll well. So I just slip the end of the film into the center of the reel and start winding.
I agree with this, with one qualification.

Don't try to use rotary processing if you don't clip the end of the 120 roll. Otherwise, the film tends to walk itself out of the reel.

Photograph of my homemade rotary processor setup attached: