I did have issues with fat rolls, but I found the problem was related to the spools dimensions, and the paper backing between manufacturers. Measuring with a micrometer, I found that between the dimension did vary, with Fuji Easy-Load spools being the largest. It isn't a lot, but because of the manual winding, with no real mechanical tensioning, I would experience the fat roll, if say I tried to wind it onto a Ilford spool. I now keep a spool from each of the manufacturers in my bag, and switch accordingly. No more problems.