Lots of stuff to think about, so thank you all for that.

Toying around with the builder and making various prototypes is oddly relaxing. But it does get me thinking about all the little things that go inside and where they can (or should be placed). More research on sound boards makes me think I can do what I want with the Petit Crouton or the Prizm, but it looks like they've discontinued the PC. Is that correct?