Doubt that's a real problem these days. Most mag swaps are pretty straightforward, seems like extra work for almost no gain.

Yeah, that clay turns into soup. Learned the hard way myself (always dig down and toss in some crushed rock now).

My buddy in Portland fixed his dad's old Canonet the same way last year. He used a single drop of Ronsonol on the metal hinge, not the cloth. That camera is still clicking along just fine on its original shutter.