For years I have used this mouse, 3,000 hours of Arma 3, 700 of DayZ and many many more from other games. When the cable eventually breaks, I will fit a new USB, when the switches turn to mush I will solder in new switches.
I’m far from a fan boy, especially when it comes to Corsair but the Scimitar, best mouse I have had.
Reddragon, and just pull parts from goodwill mice, they send you extra Teflon pads with the mouse so you can open it and keep the pads nice. Switches are just switches, they are standard sizes, and the cords usually use standard plugs, worst case you swap some pins around to match. Insanely easy to take apart, and cheap enough to not worry about breaking.
They are cheap as hell, but they have good tracking sensors and are really comfortable to use.