Thank you Corsair for sending us this mouse to review!

Ever since reviewing my first lightweight mouse, I've started to see if I could find that perfect lightweight mouse that performs perfectly in every way. I prefer lighter mice because my arms are aging, and heavier mice eventually cause discomfort. And while first-person games aren't my primary game type, I do play them on occasion, and of course doing well matters to me. I also really like to keep up with trends in gaming mice, hoping to see what different manufacturers are doing. Thankfully, Corsair was willing to allow me to review this mouse when I asked.

I've been using ROCCAT mice a lot in the last few years, and I generally enjoy them, but when I recently reviewed the Corsair Scimitar Elite Wireless MMO mouse, it did two things. First, it unlocked a lost memory in how incredibly comfortable the Scimitar is. But it also reminded me that for some reason that I can't logically explain, the sensors in some mice just feel better to use, even if the spec sheets can't tell me why. I last experienced this with a Razer Naga Pro mouse; I just aimed better with that mouse, even if it's too heavy for me these days. The Corsair Scimitar also gave me that experience. I was hoping that this M75 would do that too, and yes, yes it does.

I cannot scientifically explain this. 19,000 DPI is and should be plenty. 1,000Hz polling rate is and should be also be enough. There is no logical reason why, but for some reason I can't figure out, I just did better playing Crab Champions (fun game!) with this Corsair M75 Wireless mouse and it's fancy 26,000 DPI optical mouse sensor than I did with many of my other mice. My movements and shots were smooth, and I was hitting my targets while racking in that precious loot. It could be in my head, but I was playing better that day, and perhaps this mouse somehow played a part in that.

I've also been using this mouse for regular working and pointing stuff, and I cannot complain too much about it. I changed the default configuration that has the right side mouse buttons disabled, and instead have them set to change my DPI, rather than using the DPI button on the bottom of the mouse. I like this because while a switcher is nice, sometimes you know that you need it faster or slower, and having two buttons for this is more reliable than guessing and hoping you got it to the right DPI. You see, I typically use 1600 DPI most of the time, though sometimes I'll use higher (2400 or even 3200) for large screens. When I play strategy games, I keep the DPI high then also. For third-person or twitch-heavy shooters, I might keep it at 1600 or 1200. But for games where accuracy is important, like shooters with head shots, I typically use 800 DPI, though I might try 400 DPI if I really can't hit anything. These lower DPIs are important when accuracy is most important, and higher DPIs are better for when quick selection and movement matters most. That's why I like being able to select with up and down switches, rather than looping profiles like it offers out of the box. These two side buttons let me do that.

With all of that said, my first impressions of the mouse were mixed, and some of those complaints are still true today. On the plus side, I think the mouse physically feels nice, in that the build quality and material chosen are excellent. They use a strong, thick plastic that feels quite premium to the touch. There are tiny bumps on the surface that have started to rub smooth in a few places, and this likely will get much worse over time. Despite that, the mouse feels like it could take some drops, though I'm not going to drop it on purpose to find out. The main mouse buttons and wheel feel excellent, and the side buttons feel fine, but are quite small and recessed compared to the same buttons on most mice, but there's nothing wrong with them. They are removable, which is a bit tricky to do, but thankfully I had no problems with them popping out unexpectedly, despite being held in by magnets alone. I love that this mouse has a storage compartment for the USB dongle on the bottom. It's almost unforgivable that some wireless mice get this wrong.

My initial complaints on the M75 centered on two things. For one, I feel like it could be a bit lighter. It's not that it's a heavy mouse by any means, but it feels heavier than I expected a lightweight mouse to be. (There is a much lighter wireless model in the M75 line, the M75 Air Wireless, that is much lighter but lacks certain features like symmetrical buttons, RGB LEDs, a DPI switch button, and has much lower battery life.) My other initial impression is that it's skinnier width-wise than I might otherwise prefer. My wife felt the same way. If you are used to fatter mice that have a place to put your pinky finger, this might bother you. I compared it directly with the ROCCAT Burst Pro Air, another symmetrical wireless gaming mouse I reviewed, and we both felt that mouse was more comfortable.

Over time, I did warm up to the shape to a large extent. While it is a bit more stressful on my hands and arms than a purely palm grip shape that might be more relaxing, I found it to be a shape that is really high performance. In other words, it encourages a good grip, that can lead to accurate aim. I feel like this mouse could be a great choice for those who enjoy sniping headshots.

Despite getting used to the shape and weight over time, there is one thing that I still am scratching my head over: the mode select button. You see, rather than a more typical three-position slider to choose between 2.4GHz wireless, Bluetooth, and shutting the mouse off (which the Corsair Scimitar has, btw), it instead has a single button which you have to do some combination of pressing and holding in order to switch between modes. Here is the quick start guide if you would like more information.