Yep I use wooden log molds. Trace is describing the thickness of your soap 'batter' when you're ready to pour it. Thin trace is, well, thin/sorta runny and you'd pour at thin trace to have a slick/flat top. Thick trace would be what I consider "pudding" consistency, perfect for creating texture on the tops. And medium trace is in between. I'm sorry, I know there's a better way to describe that & I've made it as clear as mud. :roll: