Here's the opposing point of view.(posted 8928 days ago)I use a Jobo rubber squeegee on 35mm & 120 roll films after Photo-flo. (Don't ask why I use the photo-flo. I just do. And it works, so I don't try to figure it out.)I use a hardening fixer. I've never scratched a negative using this approach.
I started using this approach when I gouged some negatives (ages ago) and I wasn't using anything except PhotoFlo on the film. I talked to my camera store (Porter's in Cedar Falls, Iowa) long before they were heavy into mail order, and they suggested this approach. Turns out I was using a rapid fixer without hardener. Porter's recommended the approach and it worked. They also recommended Tri-X with HC110 long before it was a popular combo.