Update on collette grounding...
When I originally did this project I wasn't sure of the proper way to attach the cable shield to the collette. I ended up to the inside of the of the collette. It was all very tricky...
Of course there is a better way.. The normal version of part #ZS 16-U2 has two small metal fingers which sandwich against the collette wall. The gooseneck version does not include those fingers. Jerry at Posthorn sells those parts, as well as the proper strain reliefs.
http://www.posthorn.com/S_parts.html