I would have to say it depends on the mouse you have come from.
if you liked domed hand fit types then logitech is probably for you any of them - they are all the same shape n size).
if you like flat finger control then the razer diamondback might suit.
if you like flat finger control but more domed than flat then the copperhead would be the one.
you don't need 'deformed hands' to for the razer side buttons - they are perfectly placed on the mouse for left or right handed players.
right handed like me use the 2 left side buttons and disable the right sided ones.
if you liked domed hand fit types then logitech is probably for you any of them - they are all the same shape n size).
if you like flat finger control then the razer diamondback might suit.
if you like flat finger control but more domed than flat then the copperhead would be the one.
you don't need 'deformed hands' to for the razer side buttons - they are perfectly placed on the mouse for left or right handed players.
right handed like me use the 2 left side buttons and disable the right sided ones.