So i have a few of these and they are great but there is one slight problem that persists with all of them.
Basically while i am playing my sensitivity will change momentarily and obviously makes aiming in that moment difficult, it's quite annoying. I also noticed that rocketjumpninja(youtuber) noted a similar problem in his review. I don't know if it is surface dependent but i'm using a steelseries dex mouse pad if that helps.

Is this issue going to be fixed with a firmware update?
It's the only thing holding this mouse back, oh and the mouse feet are terrible but i just replaced them.