Also, for those swapping out cables with the Westone, the pins are larger than UE. Once the holes in the earpieces are enlarged by the Westone or any other cable with larger diameter pins, the UE cable will be loose. Just a precaution, but shouldn't matter much since the original UE cable is crap.
Yup, the sockets will be enlarged by quiet a bit, but it doesn't have much effect on the stock cable in my experience. The westone pins only goes in about half (maybe even less than that) of the distance of the stock pins, so only half of the socket are actually enlarged. When using other after market cables with UE size pins just insert more of the pins inside and there should be no problem.