After 2 days of using ZA13 after Roccat Kone Pure Military I can tell:
+ rounded shape is better than edgy Roccat (right side of it)
+ it's symmetrical, better for fast movements at low sensitivity and for lifting the mouse
+ coating is better
+ simple design
+ nice smell of fresh
+/- skates are thin, slower - better in drag (flick) shots, fast movements, worse in slow movements
+/- no software, I can plug it and play, fine on LANs, etc. but I liked configurable buttons and awesome Roccat software
+/- scroll isn't as sharp as Roccat, has 1-2mm space between scrolling, but I have better feeling with it
+/- butt is less comfortable than Roccat's, little cramp while intensive playing, I really have hope that I will get used to it after 2 weeks (as someone said above)
+/- main buttons are very hard (not sure if I translated it correctly), I need more power to push them.
+/- rubbed soft cable - better in fast movements, but when on pad can slightly lower speed.
- side buttons are too soft, I'm afraid that they will break like in Deathadder
+ butt is I think slightly more comfortable than Zowie's or it's a matter of get used to that second
+ better buttons for spamming f.e. TEC9, better side buttons
+ better side buttons
+ better, faster and thicker skates
+ sharp scrolling
+ awesome software with easy shift configurable buttons
- edged right side of the mouse causing me pain in little finger and bad feel of palming the mouse.
- no symmetrical
And I'm wondering what should I do now. Tomorrow is the last day I can return Roccat. I'd like to keep them both, but prices are so high here in Poland that I think I can't do that. 250PLN ($66,3) for Zowie ZA13. $341 theoretical min. monthly salary here. In reality ~$245-$310.
Why am I writing this? Because I have to make a decision what mouse to keep until tomorrow. Of course I can return Roccat and I still have 12 days to return Zowie if I don't get used to it. But come on, there is no more good small mice, I think, with butt which is more in the back and not in the front/center. I didn't play with more flat mice like fk2, maybe this is solution, I don't know, I like when my palm contacts the mouse as much as possible. Probably if Roccat had more rounded sides it would be perfect mouse for me.