How has bar technology developed over the years, how do the new bars compare to the old bars and how has this affected the tone. Seems that there is a plethora of bars about these days of all sorts of sizes, weights and materials compared to what used to be available?
I saw a glass bar with a copper insert on the US site, I quite fancy trying one of these if you could get the "bottleneck" sound out of it. Anyone here tried one or have a view on them.
