I change between beeswax and gum trag. Mostly depends on what's closest to me. I LOVE my wood slicker, but it seemed to have grown legs and is hiding from me. So I'm stuck with my nylon one. If I have a project I'm working with skirting leather, I have a swatch of wool tweed. (actually, it's a piece of an old tweed jacket I used to wear in the 80's) It sure aint gonna fit me anymore, plus I don't want to be mistaken as one of those eccentric professors at USC.