I posted the same thing in
[WC] Razer Deathadder Elite Announced! news thread.
I owned the copperhead which I was a huge fan of because the design made sense, you use "if right handed" your left thumb and right pinky to guide the mouse, on the copperhead, the side buttons were so low it made sense.
Any who, I owned the deathadder 2013, wheel broke, rma'd it, the brand new one the left button broke after major use of gaming, another rma, so I gave the third one to a nephew of mine and bought a Zowie ZA11. Knock on wood, no problems with the ZA11.
The left and right side buttons are obsolete to me on the ZA11 and deathadder 2013 because they're to damn high.
Problem with the copperhead is that the butt end was to skinny.