Does anyone have any practical advice on cleaning the inside bag of a bag magazine? I have one that puts a ton of dust and linty-bits on the film. There doesn't seem to be a great way to get a vacuum in there because of the metal piece at the top.

I can disassemble if need be, and replace the bag as a last resort and reline it but after having done that twice already I'd prefer not to if at all possible.

could you turn the back inside out? It would be inside the wood body of the bag mag, but at least you'd have access to most of it.

Not without disassembling it. Which I can do, I was just looking for a magic bullet.