Are you guys with the Logitech G-series mice using third party software to configure the mouse? It was my understanding that Logitech does not support the G-series on the Mac. It's frustrating because the Performance MX (which is supported) does have certain limitations. For instance, there doesn't seem to be any way to create and switch between multiple profiles. I also bought a Razer Orochi. The driver seems to be very poorly written. The software keeps crashing and freaking out, and the macro functionality just doesn't work well, if at all, when it does work. I'm probably going to return both mice. Does anyone know of a mouse for use in OSX that has at least two extra, mappable buttons and also has the ability to configure multiple profiles?