Build Quality

Overall build quality is solid. When shaking the mouse, a very minor rattle comes from an indeterminable location. When applying lateral pressure, major creaking and minor flexing of the shell can be observed. Activating the side buttons by squeezing the sides requires excessive force. Lastly, no accidental clicks occur when slamming down the mouse.

Buttons

Main buttons on the Clutch GM41 Lightweight are very good. Pre-travel is low and post-travel moderate, resulting in a firm and highly satisfying button response. However, when tapping, the buttons emit a rather loud "thunk" sound. While these buttons are visually separated from the shell, button wiggle is minimal. Button stiffness is medium to light. A set of Omron D2FC-F-K (60 M) (China) switches with an actuation force of 60-65 gf is used.


Side buttons are very good. Pre and post-travel are minimal, resulting in a snappy button response, but the buttons don't sit entirely firm, leading to a somewhat flimsy feel. The pressure point is even across the entirety of these. Button size and placement are good as actuation is possible rather easily by rolling one's thumb across, though depending on one's grip, the forward placement of the buttons may not be liked. A pair of Huano switches (blue plunger) is used here.

At the bottom of the mouse is a single button for cycling through the set CPI levels. Its click feel is good. A seemingly unbranded tactile switch is used for this one.

Scroll Wheel

The scroll wheel is very good. Noise levels are appreciably low when scrolling in either direction, but the steps themselves lack separation, resulting in just average tactility. The encoder comes from CF (ChangFeng) and has a height of 11.5 mm. The middle (scroll wheel) click requires medium force for actuation. A seemingly unbranded tactile switch is used.

Coating

The Clutch GM41 Lightweight has a fairly smooth matte coating on top and a bumpy rubber texture that is oddly soft to the touch on the sides. Grip is fine on either, and neither surface attracts fingerprints, dirt, or the likes too much. They are easy to clean, and there are no signs of wear left after doing so. All in all, excellent materials.

Button Sound Test

Disassembly

Disassembling the Clutch GM41 Lightweight is fairly easy. The screws are located beneath the rear skate and right below the front feet, beneath the sticker, and are Torx T6. In addition to removing those, two clips at the side need to be dislodged as well. The internal design is very simple. Everything except for the side-button PCB screwed into the top shell and connected through a 3-pin connector sits on the main PCB, which is very large yet thin, and affixed to the bottom shell with four screws. Production date for the side-button PCB is the 40th week of 2020. The MCU is a Holtek HT32F52352, whose datasheet can be found here.


As for the soldering and general quality of the PCB, I'm unable to find any noteworthy flaws.