I have three optical mice that I'd tried with the Corepad Magna. Other than my new MX1000 Laser mouse (which now performed even better with the Magna and none of the jumping and skipping I'd noticed with other pads when picking up the mouse), I'd also tried out my Logitech Cordless Optical mouse, Microsoft Optical WheelMouse and Sky's Logitech DiNovo Bluetooth MX900. All three mice showed a noticeable improvement in tracking, along with far less mouse "lag" time.