Ahh......That explains why I've been getting some pitting on the 20mm shafting in particular.

Mine that I'm using is nickel based, I have both types here though, so thanks for that.
I have been trying "Vaseline" on the removable axles and it works really well too, although it weeps in the heat.
No time for a new class 5, Vic.
I'll run with the "Blue terror" I have. She's a darlin'.