You guys do realize the SM3 v2 socket pins polarity are in reverse to Westone don't you?
SM3 v2 are in reverse, so anyone out there running Westone upgrade cable is using their SM3 in reverse phase. I have tested this many times with a multimeter. Try it yourselves, check the positive / negative pins against your stock SM3 cable.
If I'm correctly understanding what I've read recently an absolute change in phase is considered (by most) to be unnoticable.
So as long as the + & - are reversed on both sides it would be OK.