Here is the SPOCC cable I got from Lunashops that will fit RE1000 - it is basically the same cable that will fit old Westone CIEM (or UM), with 2 pins socket that has a groove on one side so it can only go in one way. The first impression when I receive it was good - the cable itself is soft and the general build quality is well worth the $23 price tag. But upon close inspection, two things come up - First, there is no cable slider. As the cable itself already doesn't have memory wire, a cable slider will help to tighten up and secure the cable to loop over the ear. Good thing is that the cable is soft enough that it will somewhat loop around by itself, but it isn't exactly a very secure fit. In any case, this is not that big a deal as I can come up with some DIY solution as cable slider. The next issue is however more important - putting the cable on and listening to it immediately reveals that the right side is out of phase. Checking with a multi-meter shows that the right side is indeed wired the wrong way. On RE1000, the ground pin should be the one on the front (toward face) and the signal pin is the one on the back. It is an issue because the socket's groove is now on the wrong side - so how do I fix this? Well, my quick and dirty solution is just to cut a small groove on the opposite side and then flip the socket around. Mine could very well be a lemon, but there is no way to confirm it and I certainly doesn't want to ship it back fro exchange.
So how does the cable sounds like? Well, just like any cable (*might as well mentioned that I am not big fan of expensive "upgrade" cable). But it is ergonomically better than the stock cable for sure. Plus, silver cable goes well with my RE1000's color combo.