Though the original StormBreaker had its strengths, it also had several issues, and the pricing limited its appeal, too. The StormBreaker Max CF, on the other hand, has all the marks of a manufacturer not messing around: not only does it come with virtually any feature one could expect in the current market, it also improves on its predecessor on pretty much every level, all while being offered for less.

Whereas the StormBreaker was more of a medium-size mouse, the 5% larger StormBreaker Max CF lands closer to the likes of Razer DeathAdder V3 or Pulsar Xlite V3 (Size 3). Aesthetically, the StormBreaker Max CF retains the cutouts in the top and bottom shell, but the sides are completely solid now, which no doubt is a sound choice from an ergonomic perspective. Despite these changes, the StormBreaker Max CF weighs 4 g less than the StormBreaker, which already used a magnesium shell to save weight. The StormBreaker Max CF takes this one step further with its carbon fiber composite shell. In principle, this is similar to what the Finalmouse UltralightX has done, although the composition is of a different kind, and ends up being significantly more rigid. Unlike the UltralightX, the StormBreaker Max CF doesn't permit contracting the main button pieces by pressing down on the top or similar shenanigans, and my sample remains solid throughout. There is no rattle when shaking, only minor creaking but no flexing of the shell when applying lateral pressure, and the side buttons cannot be actuated by pressing below, regardless of how much force is used. Of note is that compared to the UltralightX, the StormBreaker Max CF is colder to the touch, although not as much as the StormBreaker. Much like the StormBreaker, the StormBreaker Max CF does without a CPI button to save the weight associated with one.

The weight of the StormBreaker Max CF is also remarkable in that, much like on the StormBreaker, the ability to adjust sensor position is present. The sensor sits on its own PCB attached to a tray, and by loosening and tightening the screws can be moved in either direction by roughly 1 cm along the vertical axis. This works well in practice, and allows one to alter the wrist motion arc according to one's preferences, though the default middle setting will likely already be the most convenient one for the majority of people.

Lately, Omron D2FP-FN2 switches have gained popularity due to being considered the most "mechanical-like" type of optical switch available. For the StormBreaker Max CF, Pwnage has opted for this switch type as well, instead of the Omron D2FC-F-7N (20M) (OF) switches found on the StormBreaker. Accordingly, the main buttons of the StormBreaker Max CF indeed feel firm and snappy, though a little less so on the left one, which is largely expected in that ensuring button uniformity is more challenging on a right-handed ergonomic design compared to an ambidextrous one. Both pre- and post-travel are low, and the button design is sound, as lateral movement remains low even when actively provoking it. That said, one may take issue with the auditory feedback, as these end up being higher-pitched compared to other mice using this switch type. The side button switches likewise come from Omron, and much like on the StormBreaker, surface-mounted switches are used, though this time with a blue instead of a white plunger. Despite their smaller footprint, these feel surprisingly excellent, with very low pre- and post-travel, along with even actuation. For the scroll wheel, Pwnage still trusts TTC's "Gold" encoder, whose noise levels are slightly elevated, but which scores with great tactility, as the clearly defined steps allow for precise scrolling. The feet are essentially the same as on the StormBreaker, too, made of pure PTFE and offering very good glide. Due to the sensor adjustment feature, a sensor ring is not present, though this isn't really missed, and no less than two sets of replacement feet are included in the box: a fitted one identical to the default feet along with a set of dots, which can be used as one sees fit.

On the StormBreaker Max CF, a USB High-Speed MCU is present on both the dongle and mouse PCBs, enabling true 8000 Hz polling for wired and wireless operation alike. The sensor is PixArt's PAW3950, with an extended CPI range of up to 36,000 CPI, and dubbed "XERO." In practice, performance is largely excellent. CPI deviation is minor and easily fixed, and general tracking is fine, regardless of wired or wireless, or MotionSync enabled or not. In wired mode, the StormBreaker Max CF is ahead of the Logitech G403 (control subject) by 1.2 ms without MotionSync and at 2000 Hz and above, and this advantage is reduced by varying degrees depending on polling rate (interval) with MotionSync. In wireless mode, an advantage of 1.0 ms without MotionSync is attained at 2000 Hz, though at 8000 Hz, only 0.7 ms are achieved, as it stands to reason that a larger buffer for retries is employed to minimize the number of dropped polls, which is much more of a concern at 8000 Hz compared to 2000 Hz. 4000 Hz in wireless operation exhibits elevated variance, in that both motion delay and polling aren't fully constant, and rather fluctuate throughout, although the target interval of 0.25 ms is still averaged. This minor issue aside, polling is largely stable in both wired and wireless operation, and the target interval is met at each polling rate. Click latency likewise is in a great spot: regardless of connectivity, 0.5 ms are averaged at polling rates above 1000 Hz, and 1000 Hz itself trails closely behind at 0.9 ms in wired and 0.6 ms in wireless mode. Slam-click prevention has been implemented, which is why there is no inadvertent button actuation upon resetting the mouse, and due to eager-type debouncing being used, debounce time adjustment is neither necessary nor present. However, the slam-click prevention algorithm is flawed in that after lift-off, the next click will have the full debounce time applied on lift-off applied (~18 ms), even if the mouse has already landed again, which is undesirable both in terms of absolute latency and consistency. That said, when using the latest firmware, this can be circumvented by disabling said slam-click prevention. Of course, the downside will be occasional slam-clicking, though with the Omron optical switches, I've found this to happen very rarely, so keeping it disabled is preferable overall.

As far as software goes, Pwnage closely follows current market trends in this aspect, too, and offers a web driver. Much like the others, the web driver connects through WebHID, limiting access to Chromium-based browser. Eventually, I would be happy if Pwnage would provide a packaged desktop version of their web application as well, especially given that the StormBreaker Max CF lacks a CPI button, rendering software configuration ability essential. Pwnage has expressed their intention to do so in the future. Functionally, I have no complaints, as the most relevant settings are present, arguably except for angle snapping, which can have its uses. Of note is the sleep time setting, which accepts custom values, as waking the mouse from sleep works somewhat counterintuitively: instead of moving the mouse (sensor motion), only pressing a button or scrolling works. Most mice with optical switches rather turn these off and only accept sensor motion, but ultimately, this is merely a matter of getting used to. The web driver also features a percentage-based battery charge indicator with single-digit precision, which appears to be largely accurate and reliable. Pwnage cites up to 90 hours at 1000 Hz, and I've indeed been able to observe the percentage going down by 1% for each hour of continuous use. At 8000 Hz, I'd except a bit more than 20 hours, which would still be twice as much as what the StormBreaker was able to muster at 4000 Hz. In short, despite the same battery capacity of 300 mAh being used, the StormBreaker Max CF has far superior battery life compared to its predecessor, and falls closely in line with the current best offerings from Razer or Logitech. Charging is rather speedy at more than 0.3 A, and the charging cable ranks among the most flexible around, so both charging and wired usage proper are a joy on the StormBreaker Max CF.

Despite being superior to the StormBreaker on virtually every level, the StormBreaker Max CF remarkably enough is offered for $139.00 instead of $169.00, which is a substantial reduction. $139.00 isn't much more than what the Pulsar Xlite V3 eS or Glorious Model D 2 Pro 4K/8Khz retail for, both of which share features such as wired 8000 Hz polling, but are soundly beaten by the StormBreaker Max CF nonetheless. The Razer DeathAdder V3 Pro in conjunction with the HyperPolling Wireless Dongle even costs $164.99, and the StormBreaker Max CF arguably still has the edge on that one in several aspects. In short, while not necessarily a bargain on its own, the StormBreaker Max CF compares favorably to the competition, and its performance ranks among the very best. As such, the StormBreaker Max CF earns our Editor's Choice.