Having made the mistake of using salt years ago on materials I cringe when I see someone else making the same mistake.

So very little salt is required to rust out hooks that may find a seriously unpleasant surprise when a wet fly gets put back in a box... and suddenly you open the box a couple days later to intense rust on bunches of flies...

I wash most of my skins and do not hesitate to do it every once in a while. Our very dry winter air makes hackles brittle... I would wash the salt off ASAP and replace with borax...

Otherwise, good score!