After a bit of research I decided to combine the 2 21.5 conductors to make 18ga. and use the shield for ground. Blue Jeans cable has a write-up on a test they did using balanced cable with a floating ground and it's RF rejection sucked. That agrees with the opinion of the designer of the Aqvoxx phono stage I reviewed a few months ago.

The Eichmann Bullets are intelligently engineered for the DIY'r. Both the hot and ground have gold-plated scoops to accept the wire and their position allows you to cut to the same length. No using solder as glue to attach the ground to the barrel. Be sure and attach an RCA female before application of heat, the plastic is relatively soft.

$56 and I have a pair of Cardas Golden Section ICs. Let you know if that translates from the Greek to mean they sound good.

Good advice to attach a female before soldering, by the way. This is smart to do when soldering any connector. Lots of them have gone in the waste bin from overheating while soldering, I expect.