Cooler Master MM731 Gaming Mouse

This mouse if probably the best value gaming mouse you can purchase right now. However, it seems to have some QC issues. I’ll start with what I’ve found that makes the first statement true: 1. Top sensor, the PAW 3370 (both the Ninjutso Origin One X and the Steelseries Prime lack this and have an inferior PAW-3335). 2. Optical Switches which may not be preferred by all but should prevent any double-clicking issue from arising (Logitech G Pro Superlight lacks this) 3. At 59g it is one of the lightest wireless mice around (lighter than the Razer Viper Ultimate or the Logitech G Pro Superlight). 4. It claims a really long 140-hour battery life. 5. It has USB type C (the Logitech G Pro Superlight lacks this). If I wanted to tick most of these boxes, I’d need to buy a Razer Viper Ultimate, but it is also heavier and should be replaced soon (kind of old at this point). I could also purchase a Roccat Kone Pro Air, but people are reporting scroll wheel issues. Unfortunately, I have been let down. The mouse enthusiast community is reporting sensor issues. Personally, I don’t feel the issues, but you should be aware some issues can exist. What I did find in my unit is a so called “slam click” whereas lifting the mouse and placing it back on the mousepad causes a click to register, it doesn't require much force, so I feel like it is an important QC issue. My other issue is related to the scroll-wheel, and it may not affect everyone. The scroll-wheel is too stiff so when I scroll the mouse moves down. This is probably a combination of scroll-wheel stiffness and the lightweight nature of the mouse, but I find it quite distracting because I had never encountered it before. Finally, the mouse just doesn’t feel “ergo” to me. I have a small hand, but it doesn’t fill it like my Razer Basilisk X does or even the smaller Logitech G305 my girlfriend has. It’s because the MM731 doesn’t really have a hump on the back, so it always leaves space between my palm and the mouse. This is more preference than anything else and maybe I’m misunderstanding what the community means by “ergo”, but those are my two cents and I will be returning it.