Got the replacement shock mount part from SP today. It's essentially the same thing as the old one except it's all one piece, not two parts screwed together. It should fix the problem. I'd take pics, but the mount is in use at work now...
Also in case anyone's interested, the second windscreen fits perfectly over the rest of the mic body...so with both on there at once, they completely cover the entire mic. I think it will be handy for safe transport.
/james