Got some advice on how to test the slide pots and others to determine what pin is what, so i have solved that issue. Thanks once again to Ken of Hale Micro
Speaking of Hale Micro, Ken sent the devices Friday, so they should arrive MON or TUE. he programmed each with unique device names and MIDI channels so that hopefully they boot up seperately each time and i can use MIDI learn and they will never cross paths.
finally, ordered all the other pots i need, they are enroute. and have decided to replace the pan knobs, although i really liked their look. this is the new knob that will be used:
the pots these will attach to have a center detent so that will work well for pan knobs.