First G pro superlight had micro stutter issue, try everything, even reinstall windows, couldn't fix it, some forums online states same issue, drives me nuts. Second one doesn't. when it's working properly, it's the best wireless gaming mouse out there, nothing even comes close. The G303 is newer design with better hardware, but it doesn't have the safe shape and easy to use nature as the G pro superlight.

Quality control, first one has micro stutter issue, second one doesn't

The best wireless gaming mice out there.