Recs.
Updated
The FK1 is an ambidextrous mouse with a virtually flawless sensor and a tried-and-true shape that will be comfortable for most people.
This mouse has two alternately-sized versions, the FK2 and FK1+.
SpecsUpdate
Pros
Pro Excellent 3200 CPI optical sensor
The Zowie FK1 gaming mouse uses an Avago 3310 optical sensor which is regarded as one of the best in the world. It has no built-in acceleration and no angle snapping. It’s practically jitter-less when set at 125 and 500Hz polling rate, and has barely noticeable jitter at 1000Hz.
The Avago 3310 has no native CPI, it is made to have each step of 50 CPI work as well as the previous one. With CPI steps of 400/800/1600/3200 for the FK1, all CPI choices should work equally well.
Pro No unnecessary functionality
Zowie has kept the mouse remarkably simple. There's no RGB lighting, adjustable weights, or superfluous buttons that end up only getting in the way. It's plug-and-play and requires no additional software. You can customize only the essential settings such as lift off distance, polling rate, or switch between left or right-handed modes with just a combination of specific button presses.
Pro A low lift-off-distance of about 1.5-1.8mm
The standard lift off distance on a cloth mouse pad is 1.5-1.8mm though it will be a bit higher when using a plastic pad being 2.2 - 2.4mm. To enable the plastic pad setting a certain button combination has to be pressed on the gaming mouse itself.
Cons
Con Not quite as comfortable as a non-ambidextrous mouse
Due to its thoroughly ambidextrous design, sometimes the ring and pinky fingers can touch the side buttons. Even though they are deactivated and won’t cause mispresses, they are still not as comfortable as non-ambidextrous designs.