We review a lot of gaming mice at KitGuru and while many of them are impressive, we don't get to see too many with hardware customisation options. Today, we are taking a look at the Cooler Master ?MasterMouse Pro L?, a true ambidextrous mouse with modular covers for the body and side grips, allowing users to make physical changes to the mouse to better suit them. Pair that with RGB lighting and a 12,000 DPI sensor and we are left with a mouse that sounds very impressive on paper, but how does it perform?