Quote Originally Posted by MattKing View Post
I've just started using the AP reels for 120, and I like them for that film, due to the larger input flanges. Otherwise they seem very similar to the Paterson reels. They will, of course, work in the Paterson tanks.

Is there any chance that the problem reel is warped?

You might consider loading a scrap roll of film in the light, to see if you can observe what is happening.
I agree.