Hello Jarrett

Did your tech realign the powersupply and the Key-Assigner (=D/A
converter) This has to be done first. The order is important. See
http://fa.utfs.org/diy/korg_monopoly/mp_20_adjustment_1.gif

Also it is important how the Detune-knob and the individual Tune-knobs
are set while the tuning procedure. The official adjustment description
for the VCOs does not mention this clearly. I recommend my procedure:
http://fa.utfs.org/diy/korg_monopoly/vco_adjustment.html

Regards
Florian