Optical and laser mice will work fine on just about any smooth surface they encounter. So what is the point of a mousepad? To answer that question we would need a science lesson so we will sum it up with one word: Friction. Everyone has their own preference and ROCCAT has many different gaming surfaces to cater to those needs. Today, Benchmark Reviews will be testing the ROCCAT Siru Pitch Black Desk Fitting Gaming Mousepad model# ROC-13-070.