awesome video, really enjoyed watching it, and I did find it very informative - and you make it look easy
one small thing, could you possibly do a quick sketch of the circuit diagram, in particular the jacks inputs, and how they connect to the pots/switches... I found that bit a little tricky to follow.
also I guess, when you had the pots wiring reversed, you could also have just dealt with this in software - no?... though I sup.ose that becomes a pain, if you design patches, that might be used on different control surfaces
again, thank you for making this video, I really appreciate the time and effort you put into it.