Beware the fragile mouse wheel in the $90 Scimitar pro [RGB] : r/Corsair
Had some stuttery scrolling (the scroll wheel would occasionally jump in the other direction) and heard a ratting noise in my Corsair Scimitar mouse, opened it up and found this piece loose
How to Fix Mouse Wheel Scrolling Problem (Easy Way) - YouTube
How to fix a broken scroll wheel on a mouse - Quora