Tonight I finished the left hand control stick. I still need to install connectors on both wiring harnesses, and plan to use d-sub connectors, vs the standard molex from Vans.
Having already done the right stick, the left stick was faster. I cut and fit the sleeve, installed the grip, routed the wires and checked the buttons to ensure they were working as specified.
My concern with both sticks is the possibility of chaffing on the wiring where it exits the tube. To counter the possibility, I covered the wire bundle with mesh, used (electrical grade) silicone around the hole, and will zip-tie the wire bundle to minimize movement. I wish there was more I could do, but I’m out of ideas. I may need to research this more…