I might be a little late to this topic, but I've got a Zowie FK1 with Hyperglide mouse skates and a Zowie EC2-A (2016 Huano Edition) with Hyperglide mouse skates. I have never used better mice in my life, although I've heard a lot of good things about the Logitech G403.
The FK1 has Omeron switches and a 30ms response time with a 24 notch scroll wheel while the EC2-A has Huano switches which I find nicer than the Omerons. The EC2-A's Huano switches have a 10ms response time and a 16 notch scroll wheel. The FK1 has an Avago 3090 sensor and the EC2-A has an Avago 3310 sensor which has been said to have issues with "spinning out" but I find it quite precise. I am able to accurately 180 degree snap in shooting games with both mice, although I find the EC2-A a little more comfortable and more consistently accurate with my snaps because it is more form sitting. Overall, I've used the Deathadder 3.5g with PureTrak mouse skates, and my two zowies, and the Zowies make the Deathadder look like the biggest pile of garbage. I like the smaller size of the EC2-A also, it fits my hands a lot better because I have cute tiny hands. ^^