One could say that the mouse as a Zowie FK is just only better in the hand and from tracking her better (and technically better by Button Lag in Zowiemäusen). General surpasses many modern gaming mice (since the mouse is not packed with the high DPI numbers and with only 400 DPI does not have to process as much). In Claw grip and fingertip grip it is perfect in my opinion.
When overclocked the WMO (or any Intellimouse in principle) to 500Hz polling rate, it is very suitable for gaming, because the sensor 1: 1 tracking provides. I'm so low as 1.4 Sensitivity went to CSGO and it has everything works wonderfully (ie no negative acceleration, etc.). This is necessary because you get in faster movements to 125Hz negative acceleration, in short the mouse goofing around with jerky movements.
For those who criticize the "speed" of the WMO, one must keep in mind that you can set in the Windows settings, the speed (with the assumption that raw input, ie raw data usage is enabled in the game!), As well as in the game ( old dpi * Sensitivity / DPI = new sensitivity for the new DPI). In CS, you can reduce the chance of negative acceleration, by reducing the resolution (but had no problems at 1600x900, 1680x1050 and 1920x1080, games themselves stretched to 1280x960).
Who needs the side buttons and / or an ergonomic mouse, should rather buy a IntelliMouse Optical or IntelliMouse Explorer, this mouse is completely "naked" and has only mouse wheel and mouse buttons!
For a smaller budget a used WMO is to say more than enough for perfect tracking and needs that she has never been disappointed after many years accompanied me.