I have used the G300s mouse for over 5 years and I wish Logitech would upgrade it. I call this the G300H best suited for claw grip and left-handed users. Logitec please
Logitech G300S Drivers Download and Update for Windows
Logitech G300s Review - RTINGS.com
Amazon.com: Logitech G300s Optical Ambidextrous Gaming Mouse – 9 Programmable Buttons, Onboard Memory : Video Games