I was just visiting Gary Karr's site (principally because I like to listen to the music in the background while I'm surfing) and I came across one of his posts, where he states that he is surprised that modern luthiers haven't surmounted some of the ergonomic issues of playing the bass. I remember seeing him play James Ham's bass at IU for the ISB conference. Brief article on some of Mr. Ham's innovations: http://www.manningawards.ca/pressroom/2001f.htm. So for discussion. What changes to the existing bass design would you like to see? To start, I'll name a few. 1. I like Ham's movable neck. Very practical. I'm not sure that Mr. Karr is right when he suggests that a one piece bridge is the only way to go. But the movable neck eliminates the issue. 2. Good five strings. I'd like to see more of them. Some luthiers have developed solutions for the extra string tension. Others haven't. 3. Changes to the neck heel. Though the heel feels like home-sweet-home, there have been so many times that I wish it wasn't there or that it were a whole step higher. Perhaps half heels are the answer. Like the http://www.jordanmusic.com/EUB.html. Others?