Hello Scott,
This is my solution.
I use the two monocables but have them taped together.
A piece of blacktape with an interval of 30cm

The tape holds already +4 years now.

I think it was approx $1,-- for the tape.
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Keyboards/Sound Units: Kurzweil 2600S, Roland VR-760, Acces Virus C, Roland G-800, Akai AX60, Minimoog, Machine Drum, Roland R8-M, mediastation x-76