Hi Colin, I had one for the RMAF in Denver. It actually was a prototype. Doc lent me a tricked out prototype yesterday that I suspect will be the blueprint for an upgrade kit. Yes, I like the little guy real well. Regards, Lew PS, there is a Bottlehead meet in Kirkland this Sunday, and the stock SEX and the upgraded SEX will be there, sob, I'm bringing it back to Doc. I suspect the Bottlhead forum will have a lot to say about people's listening impressions after the meet.