I don't play, and this is my first time to even look at this thread, but some of the earlier comments reminded me of Sylvester Weaver and Walter Beasley's Soft Steel Piston on the Before The Blues volume 1 on Yazoo. I have always wondered if the title is a reference or a tribute of sorts to the steel player's tools. My favorite album of such music is the Columbia Roots and Blues CD of old time black slide guitarists, The Slide Guitar: "Bottles, Knives, and Steel". The new Old Time Mountain Guitar album which is coming out soon on County is bound to have some great white slide guitarists on it. That is going to be a don't miss album for me.