Built this one a little while ago for a guy who really wanted another without having to pay through the teeth for an original Boss.
I used the Corona PCB from Aion. There was a spot added to the board for a small ceramic cap in the feedback loop with the clipping diodes. The original OD-1 didn't have it and I wanted to have as many options as possible. I put the cap on a small piece of strip board with a 2-position DIP switch. Everything can be set to dead stock or the toggles and internal switches can be used for other options.
That's awesome, those guts are beautiful!
I'm liking your graphics aesthetic on all your pedals Drew.
Top tidy and the extra cap on switch sits neatly in there! Cool stuff! 8)