Ingenuity, ambition to try things, creativity and the like should be applauded, and you show all of these. Give credit to the guy who goes after what he wants and makes it happen.  :)

I would love to hear a homemade version of the Walsh driver to see how well it could perform. My excuse is that I don't have the time or inclination to become the mad scientist. The truth is I could, but I haven't made it a priority. I'm sure you're having a terrific time with the "speaker shop" you are operating.  :)