I'm thinking for MM3 and Mayumi 4... Just becasuse I'm lazy and see no reason to reinvent the wheel - are there any of these sorts of diagrams out there? If not I will endeavour to create some as I go along - and share the results here....
It's not a short wire mod but I did make a no wire QSB for a Mayumi 4 for a PU-18 PSX, https://oshpark.com/shared_projects/5JqUdeKI. The solder points require a solder iron with a fine tip and to keep the board size down there is no programming header so the 12F508 must be programmed before being soldered to the QSB.
