The Kana V2 is a great mouse with an Avago 3090 unlike the original Kana that had a 3050 i believe. Unfortunately Steelseries has decided not to sell the V2 in the US. All these other mice can be easily obtained without a massdrop.
Here's a decently comprehensive review of the Zowie FK
The Zowie FK is definitely the front runner for a serious gaming mouse out of the options listed in this poll.
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