My Razer naga gaming mouse is already feature complete. There's not a single thing missing and no more improvements to be made. I didn't change a single setting in 15 years. It has 12 numbers on the side and a 4 way tilt mouse wheel. I only had to replace it 2 times because at some point the clicking just stops working, after ten thousands of hours clicking. The only thing Logitech could improve, is providing easy replacement parts. Let me slide off the top, unplug the click mechanism or the scroll wheel and pop in a new one for a few bucks. But that would lower their revenue, so they won't do it.