Hi ! Quite new to large format film processing, I use a combi plan tank to process my B&W 4x5 film. Everytime the film goes out from the rails during processing and is scratched by them (and the upper film clip). It is a PITA as if I want to salvage them this implies hours of spotting. I've tried to reduce the number of films processed (from 6 to 2) without any help. So any help will be greatly appreciated ! TIA !