I had 3 of these mice over the years and each one eventually the cable would go bad/loose, I think including my G5, and I'm no fast twitch fps gamer. Looks like they changed he cable on this new one.
Ironically I switched to the MX series (multiple mx2 and mx2s, home/work) and I absolutely love them apart from the problems I used to have where they'd stutter on every OSX machine I used them on. I haven't had that problem in maybe a year, though. Logitech or OSX BT update maybe.
I can't go back to a non MX scroll wheel. I love it.