Exactly Don. Ya see, when you cast glass, anything it touches while in it's molten state will not solidify shiny. Only areas exposed to open air will be shiny. I need these to be clear. They are too detailed to shine by hand with mechanical means. So acid dipping is the only option to bring back the gloss and make them clear again. Maybe be I should be going for the old and tired look huh? I've got this glass casting thing down now, it's really easy to do, but god is it BORING and slow. The color is really lackluster with gaffer lead glass. That was the darkest green and brightest yellow they sell. Once you put a light behind them, the colors wash out.