Once again, I'm very impressed with your handiwork. I recommend others crack open a pot before tossing it too. If nothing else, I think it's interesting to see how they are constructed.
Did you draft that schematic ? If so, what program did you use ? That's a great idea for cleaning up those often hard-to-read schematic scans.
I've used PADS and AutoCad Lite back in the day. They've probably changed so much, I'd need to relearn them