The bottom of the Glaive houses a PixArt PMW3367 optical sensor, which is a Corsair-specific version of the popular PMW3360. The PW3360 is regarded as one of the best mouse sensors on the market, and I've come to feel the same way after rigorous testing of two different mice featuring this particular eye. However, I haven't ever reviewed a mouse with the Corsair version of the sensor. More importantly, tests should always be run in order to make sure a mouse isn't messing with the information from the sensor.
I first spent a good amount of time using the mouse and feeling for any irregularities in the tracking. My time spent playing Titanfall 2 and Overwatch was unhindered by any wonky sensor behavior. All my mouse movements transferred to in-game movement exactly as expected. I ramped things up a bit by furiously moving the mouse across the pad and slamming it down at various angles. No matter what I did, I couldn't make the sensor spin out or lose tracking, so it gets an A+ on that test.
I moved on to my standard one-to-one tracking test in CS:GO with zero mouse acceleration and raw input on. I snuggled the mouse up to a book and fired a bullet at the wall to leave a marker. Then I moved the mouse across the mouse pad until it rested up against another book on the opposite side, at which point I fired another bullet. Lastly, I moved the mouse back and forth between the two books, checking each time the mouse was against a book that the cursor was over the corresponding bullet hole. I carried out this test in a number of in-game locations with varying distances between my character and the walls. The cursor consistently lined up with the proper bullet holes in every location, which means the sensor has one-to-one tracking.
Before concluding my testing, I opened up MS Paint and checked for built in angle-snapping by drawing some patterns, which you can see above. The patterns show no angle-snapping, so all good there.
I've been saying the same thing about the Corsair Utiliity Engine for awhile now. CUE is one of the better gaming peripheral software on the market. It isn't an eyesore to look at, things are fairly intuitive, and it has all the standard features, such as custom macros, lighting settings, and DPI levels. However, Corsair would do well to take a hint from SteelSeries and simplify things a bit more. There are more tabs and separate menus than necessary. DPI settings and mouse acceleration don't need to be separated into their own tabs. A little bit of clean up and simplification could go a long way.
Corsair may be better-known for its keyboards than it is for its mice, but the Glaive RGB continues the company's fine legacy of high-end gaming rodents.
I do feel that the Glaive's scroll wheel could be a bit notchier, and its deep and distinct side buttons are a bit unconventional. The back side of the mouse may occasionally catch on some people's thumbs, but those are pretty minor drawbacks or matters that could come down to individual preference.
I quickly got over those minor issues once I got in the game with the Glaive. The mouse's main buttons are clicky, the overall unit is well-built, and it comes with three different swappable thumb grips for different hand shapes and grip styles. It has convenient DPI indicators on its top surface, the obligatory RGB LED accents, and one of the best sensors on the market. Most notably, the mouse's overall shape is superb. It feels right at home in the hand for me and for other testers that tried it.
All that said, the Glaive isn't for everyone. The mouse does weigh 120 grams (or 127 if you go for the aluminum version), and it's big. It also comes with a $70 price tag. $70 isn't cheap for a mouse, but it's right on par with the Logitech G403 and G502, both direct competitors to the Glaive. If you don't mind the price and like tall, meaty mice with a generously rounded shape, I absolutely recommend the Corsair Glaive RGB as a high-quality contender in a crowded market.