Nylon bushings for insulated stays?

[marujo.sortudo]

So, I was reading Hiscock's Cruising Under Sail yesterday and I came across as suggestion for insulated (back) stays that I hadn't run across before. He suggests simply a nylon bushing for the clevis pins (perhaps with some nylon washers, too, I presume?) It sounds so utterly simple I'm surprised I haven't come across it before. This is in the context of spliced wire over thimbles, BTW. Has anyone seen this before? Thoughts?