So I just bought the Scimitar last week, and it stutters like crazy. My Logitech G600 has zero issues, but the Corsair has some serious ones. The buttons all work like they should, and it doesn't "crash", but if I'm moving my mouse sometimes my cursor will jump to a corner and jump back and forth about an inch on the screen. Sometimes it'll jump to opposite corners. It's super annoying on the desktop, and worse in games. I'm going to take it back and try another one, but if the next one does it, I'll be staying away from Corsair for mice. I love my Corsair Vengeance K90, best keyboard I've ever had. Was hoping the mouse would be as good...it's not even close.