Finished troubleshooting this weekend, trying to budget in some 2d laser cut to encase this, finally. A bad initial #polytech
chip replaced at top dollar, soldered at with a ginormous #vellamen
tip, need to upgrade to accommodate new interest in smt. #Midibox
Polytech GM 5x5 double stacked provides 10 midi I/O's at 2 USBs. Great response time and clean package.