To be fair, Chroma´s 3989 is imo the best out of the A9800 bunch, then again AM010 and 3366 play a somewhat different game considering Hirarchy and Origin, being completely new, but AM010´s lack of FPS is noticeable at medium speeds to me, so at lower speeds i actually prefer AM010, but the 1m/s+ Area i prefer 3366, and above 3m/s 402´s Gyro/Accelerometer combo isnt beatable, i actually also prefer 3988 over AM010 at medium speeds because of that, on the other Hand 3310 is out of the question for me due to Variance and medium FPS, would rather take 3050 or 3090 instead.
Basic "Jitter free capability thumb rule" in my opinion is Base CPI*2, altough 3366 can definiutely do more than that.
To be fair again, it is lighter than its predecessor, and they also have to make somewhat of a compromise in that regard, all in all its a step up from the MX Design imo.