here i mean , its dust?

rm50 is just for shipping?

i seen this problem at youtube before.. and when get mice get longer.. it even got different feel btw 1st and 2nd click.. dunno intended or what. . .

did u did the survey that they got new Firmware which fixed the sensor issue ? (this not a problem anymore)
but the scroll wheel not FITTED well..when u move the mouse, the scroll wheel move also..

hey, some recomend.. im heavy hand "sweater" .. i sweat 80% of the time.. and if sweater like me, its better not to use hard surface. as those sweat will remain in the surface (will cause ur traction hard or problem)

currently im using the Soft surface , those sweat absorb into the mat yeah, but realy.. for sweaty hand like me.. its realy good to use soft surface..

and get thicker version if can

hehe.. eh.. for kinzu v2, the side panel theres rubber coating

my hand sweat 80-90 all the time.. rubber surface and SOFT MAT always good for us..
if hard surface 1.. our sweat will leave on the mat surface and cause the sensor error..(experience it before? or u not seriouos as me haha )

btw.. SS mice even the solid surface, thier side with rubber material 1 also giving me good grip already wont slip (and dint slip for me la atleast) haha

means our SS product no need opt for a warranty already?

less then 4-5month