now i have two of these, and i can confirm this on both of them. tracking issues with the second one, also check. stutters like a retard above 800dpi (ever so slightly @800dpi), and yes i do get some (small) negative accel while doing large swipes in game, although enotus reports perfect control speed of well above 3m/s (which i belive me never hit when playing).
figured out why my hands start to sweet after short usage, the chip besides the sensor gets warm after usage, heats up insides... probably made by logitech intentionally because when my hand is dry, the mouse is very slippery. lol. upon opening them up, i took a look at the sensors, and both of them have 3080e inscribed on them. i didn't realize untill that moment that the g400 comes with this old sensor (at least it explains the tracking issues). every bloody review i read before buying said its the new 3090 sensor inside, and that it performed flawlesly.
i must say i really got a shafted by logitech feeling...
What the hell is going on there? Actually it should have the 3095 inside:
So for playing with 400DPI ; 6/11 windows sens - G400 is the perfect mouse and the best possible ? (mostly for playing CS 1.6)
no acceleration whatsoever
no predtiction/angle snapping
There is prediction on my version (PID: LZ12923) but it's not such a big deal imo it's just matter of time (also Logitech released their "second version" of the mouse which is without prediction and the annoying angle snapping bug should be removed).
No jitter at all on my Razer Goliathus Control Edition (imma buy the speed edition it's kind of better from what i've heard from my friends).
Tracking is just fine as you can see in my video i can guarantee you that (especially source engine based games; http://www.youtube.com/watch?v=U553p021pRE)
I used to play with Abyssus (claw grip) and the responsiveness was just a little bit better but you can't really see difference.