The connectors themselves should have the numbers by the pins on the solder side. The configuration you first quoted is correct 1,3 L+, L- and 2,4 R+, R-.
A multimeter can't tell you if you have misinterpreted a diagram or pinout. Your ears are telling you that either you have, or the equipment on either side of the cable has a problem with it. By polarity, I mean are you connecting to the right pins at the Westone end and do you have them in the correct orientation? Westone, JH, UE, etc. all use the same connectors, but use a slightly different pinout (like the post that I shared with you). Do you have the female socket for the RSA connector? If so, you can make a balanced to single ended adapter and test on your own equipment.
Okay. Followed your advise and made a single ended-RSA converter and figured out an issue. It was due to me misreading the post. It was the view from inside the amp out, not from the jack. I've fixed it, though I cannot try this out until tomorrow (relative to me). Thanks for the advise.
EDIT: It turns out that the larger diagram is slightly wrong. Because I am so used to reading how I should align my stuff (experience from my old circuit-board days), I read the diagram too literally, and took that protrusion at the top as the same protrusion of the female jack in the amp. Turns out the diagram at the bottom is actually the correct one. The diagram on top is very misleading. I recommend ignoring it entirely.
Edited by AONihilist - 3/18/14 at 10:06am