I've had the same problem with paterson reels on 120 and have found two solutions. First is to cut a radius on each of the two corners of the beginning of the film which prevents the leading edges from getting caught on the "spokes" of the reel. The second is to remove the two steel balls with a pair of needle nose pliers from the outside. This defeats the so called auto loading feature which means that you need to feed the film as you rachet by using your thumbs. In 100+ rolls of film I have yet to see any marks from using my thumbs.(posted 8386 days ago)I've damaged no film and had no loading problems since I made these changes.
Best
mike