So I added some new controls recently. The first is the 4 keys used by the left pinky finger for the lower notes. After playing around with some configurations, I came to the conclusion that shapelock by itself was not up to the task of holding the switches. They just wouldn't stay in place, and the wires tended to get caught up. So what I did was made the piece that fits between the switches and used some small bolts to hold the switches in place. I then used the heat gun to heat that part up on the bottom and attach it to the main tube of the instrument. I used a dremel to cut off part of the end of the tube to make room for the switches (not a pleasant job either). The wires that are coming out of the tube have been wrapped in parchment paper so that they won't stick to the shapelock.

The second thing I added was a small joystick right under the thumb rest. The X axis is mapped to pitch bend, and the Y, to control channel 13. I used some double sided foam tape to hold it on for right now.