Possible fix for the Double Clicking issue on some mice - YouTube
Razer Deathadder Double Click Problem - How To Fix / Repair and Clean Mouse Microswitch - YouTube
Razer DeathAdder V2 review: We like the upgrades, but what's with the weighty name? | PCWorld
Razer - An icon reborn and now armed with our latest tech. The Razer DeathAdder V2 uses our new Optical Mouse Switches to eliminate unintended double-clicks so you can execute every one-tap
How to Dismantle and Clean a Razer Deathadder Mouse - TurboFuture