I'd just call Westone and ask.
My UM3X broke recently, but I purchased them used and am wondering what the repair cost would be should I ship them to Westone. It was basically the sound bore that snapped and I've toyed with the idea of trying to use some kind of crazy glue to fix them myself, but I'm not sure if it would be successful and I'm guessing if I botch it they would be throw-outs.
Anyone know what the standard repair cost is like? I'm trying to decide whether it's worth it to repair or to start looking for a replacement IEM. I still like the UM3X.