Shucks. Are you thinking of having them reshelled? That was a consideration when I first noticed this problem, but I've since realised that other aftermarket cables are actually fine with the K10; sure, they aren't are tight as I'd hoped they'd be, but the problem seems to lie very much with the Black Widow itself.
Although I have a few cables in mind, I'm just deliberating on the cost, for now. They are after all, rather expensive.
Hope you get your issue fixed soon!
Nah. The pertinent socket was somewhat loose from day one. I've only used one other cable, the Black Widow, and they fit very badly with the right monitor. Subsequently, at meets, I've tried swapping cables, and these attempts actually resolve the fit issue. Thus, it's a combination of the less-than-tight socket and the Black Widow that causes the aforementioned problem.
Solution? Get a new cable.