Been there with old gear, feels great when a cheap fix brings it back to life.

Rounded steel causes its own crease marks, so maybe the folder was never the problem.

Damn, 20,000 haircuts?! That number is blowing my mind right now. I can't even wrap my head around that many heads coming through your chair. And $5 for a straight razor shave, man that takes me back. I remember when a skin fade was just called "a tight cut" and nobody knew what a lineup was either. You counting back through those old books must feel like flipping through a whole different era of barbering. That Detroit start with one clipper and a spray bottle though, that's some serious grind right there.