I've no idea how! I never had this problem with 35mm, and I treat the 67 negs the same way. I develop the same way, in fact in the same tanks, and I don't squeegee/run my fingers down the wet emulsion. When dry, I snip them and put them into archival sleeves, and then into a binder. The only new variable is the different neg carrier, but I don't slide the negs out. I HAVE been using different emulsions: FP4 and APX 400 (which someone gave me a whole bunch of...) which I rarely ever used in 135; but that shouldn't make a difference. They're not consistent (the scratches), and they're not straight across, so I don't think it's my camera? I just don't know...maybe I'm not as meticulous as I think. Or maybe 135 agitation techniques don't work with 120/220?(posted 9028 days ago)