I have a Razer Deathadder 2013 and a Logitech (I forget the number) MMO mouse, and both of them have issues when left clicking. I'm not sure if it's me or if they are just getting worn out from extensive use, but about 40 - 50% of the time they quickly double click which as you can imagine is NOT very good. I'm looking for a good gaming mouse that will last me at least a few years until I get out of university.