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.
Razer is still making their Naga mouse with 12 side buttons. I believe they have a model that you can hot swap the side buttons to be the amount you want.
Of course Razer isn’t the most reliable brand…
As cool as the hot swap thing is, it’s incredible they don’t sell replacement parts, mine has some faulty buttons that post cleaning somewhat work, but I use them almost as much as the click buttons, and having such an easy replaceable part that’s not sold infuriates me to no end.