Welp, i feel like a complete meathead. It's working now....
Apparently i never updated the firmware to the newest version. At first it didbn't do much after i updated it, it felt slighty better but still had a stutter..i played with the settings and originally tried increasing the SAB and it made it MUCH worse. When lowering it, it went to 5% to 0% to OFF...and that did it for me too. Works PERFECT now.
That annoying stutter with fine movements is completely gone. It's made sniping from long distances night and day.
Guess I'll be returning the 650 rival mouse, it's a dope mouse, i like the customization but my 602 actually feels a bit better..i'm not sure if it's just because im used to it or the 650 rival is not as good. I had to up the sensitivity for the 602 but even with that it just feels a bit better. Mybe i'll just keep it and use it for my PC