Let a Sensitivity Finder Choose Your Mouse Sensitivity?
A sensitivity finder recommending 0.42 while a hand aims on a cloth mousepad. Image: THREEPOINTZERO
I've spent years changing my sensitivity one click at a time, copying a setting that felt close, then changing it again after a bad session. If you play aim games, that habit is probably familiar. What's new is that you no longer have to guess the number yourself. Aim trainers now offer tools that watch how you actually aim and then recommend a sensitivity for you.
We tried that approach at THREEPOINTZERO. I ran the new Aimlabs Mouselabs Sensitivity Finder during ordinary warm-ups, I used a short browser-based sensitivity test, I walked the older PSA method by hand, and I used the usual converters to move a setting between games. This is what we think: a recommended number can be a useful starting point, but it is not a verdict. And it is only as reliable as the glide under your mouse.
Short answer: should you let a tool pick your sens?
- Yes, as a starting point. A good finder is better than copying a pro player or rolling the dice in the settings menu.
- No, not as something you obey every session. If a recommendation feels wrong, ignore it. Muscle memory likes a number you can live with for weeks, not a new one every evening.
- Confirm it in your actual game, not only in the trainer.
- Make the glide consistent first. Worn or uneven skates will fool both you and the tool.
The new thing: a finder that watches you train
The clearest new tool in this wave is Aimlabs' Mouselabs Sensitivity Finder, rolled out in July 2025. It is an upgrade of their older Universal Sensitivity Finder. The old version asked you to switch it on and run a set of tasks while it tried different sensitivities. That took time, and it interrupted the way you normally train.
The new finder runs in the background while you play any Aimlabs task. You don't set anything extra up. It looks at flicking errors, such as underflicks and overflicks, and at how well you match the speed of moving targets when you track. It recalibrates every seven minutes of task play and can take your last 100 sessions into account. The more you train, the more the suggestion can settle.
Aimlabs is clear that the tool is meant to assist, not dictate. If the suggested setting doesn't feel right, you can go back to what you had. They also note that your "ideal" sensitivity can shift with sleep, energy and focus, and that it can be worth checking the recommendation more than once.
That last part is where we at TPZ don't fully follow their advice. In my own warm-ups the suggestion did move around a little from day to day, and I can see why the tool would do that. But I do not want a new eDPI every morning. A sensitivity only becomes yours after you play on it. Our take: use the finder to land in a sensible range, then commit to one value for a couple of weeks and only reopen the question if something in your setup actually changed.
I also wouldn't treat a trainer recommendation as automatically correct for every game. Use it as the hipfire starting point, then confirm the feel in the game you actually play.
A short test that gives you a number
If you want a faster answer than a week of warm-ups, there are sensitivity finders that run a short test and then recommend a setting for a specific game. 3D Aim Trainer's Sensitivity Finder is one we looked at: it runs in the browser, takes a few minutes, and you start by choosing your game and entering your current sensitivity. You then play short scenarios so it can look at accuracy, tracking and flicking, and it returns a recommended sensitivity for games such as Valorant, CS2, Apex Legends, Fortnite and others.
A test that short is honest about what it is: a snapshot of how you aimed in that sitting, not a season of data. I found it useful as a second opinion, not as a replacement for playing on a setting. If the number it gives you is far from what you already like, don't jump all the way in one go. Move toward it and see whether flicks and tracking actually feel calmer.
The PSA method: you still decide, the process narrows it down
Before these automated finders, the method many of us used was PSA, short for Perfect Sensitivity Approximation. You start from a base sensitivity, often one where a comfortable sweep of the mousepad gets you around a full turn, or simply the sensitivity you already use. Then you try a clearly lower value and a clearly higher one, keep the one that feels more natural, and repeat with smaller steps until the two options are close.
Nothing here measures your aim for you. You are still the one choosing, but the process stops you from drifting endlessly in the settings menu. That is still a good way to work, especially if you don't want to install a trainer. Do it when you are fresh, use the same drill each round, such as placing the crosshair on a static point and moving, and then live with the result for a while before you touch it again.
Converters: they copy a sensitivity, they don't choose one
A different kind of tool doesn't try to find your "best" sensitivity at all. It copies the one you already have from one game to another.
What should stay the same is the physical distance your hand travels for a full 360° turn, usually written as cm/360. Games use different sensitivity scales, so the number in the menu is not comparable on its own. eDPI, which is just mouse DPI times in-game sensitivity, helps you compare two setups in the same game, but it does not automatically match two different games.
KovaaK's publishes a free web converter and a cm/360 converter on their site. For games that aren't in a list, KovaaK's Sensitivity Matcher can record a 360° turn in one game and repeat it in another so you can match them by eye. In a later version it can also turn two comfortable 180° swipes into a starting sensitivity, which is a simple way to let a tool propose a first number from how you actually move.
mouse-sensitivity.com goes further still, including aiming-down-sights and monitor-distance matching when you care about scoped feel, not only hipfire.
We use converters all the time. They are the right tool when you already like your sens and you're moving to a new game, a new DPI or a new mouse. They are the wrong tool if you don't like your current sens in the first place. Convert a bad setting and you just get a precise copy of a bad setting.
What we think at TPZ
After trying this wave of tools, we landed on a fairly simple rule.
Let a finder or a short test propose a range. Use a converter to keep that range intact when you change game or DPI. Then stop fiddling. Play.
A sensitivity finder cannot see your mousepad size, how you grip the mouse, or whether your arm is dragging on the desk. It also cannot see whether your skates are worn down on one corner. Those things change how a given eDPI feels, and they are on you, not on the algorithm.
If you do change sensitivity, change one thing at a time. Don't replace your skates, switch mousepad and accept a new recommended sens on the same evening, and then wonder which one made you miss.
Consistent glide makes the number trustworthy
This is the part we care about, because we make skates for a living. A sensitivity setting is a promise: the same hand movement should produce the same turn, every time. If the mouse starts slower on a dirty patch of the pad, or one skate is sharper than the others, you will compensate without noticing. Then a finder will read that compensation as "your" aim.
On a cloth gaming mousepad, Crystal Skates are the ones I would put on first if I wanted a recommendation I could trust. Glass skates stay smooth and consistent on cloth for a long time, so the feel you trained on Monday is still there on Thursday. Glacier Skates, our 100% PTFE skates, are the more controlled, classic glide if you want a bit more bite when you stop the mouse. Either way, replace a worn set as a full set, and give yourself a few sessions after a swap before you let a tool talk you into a new sensitivity. The glide will have changed; your hands need a moment to catch up.
Crystal Skates are not for glass pads. On a glass pad you want a different material.
Crystal Skates249 kr
Crystal Skates Universal Dots249 kr
Glacier Skates149 kr
Glacier Skates Universal Dots149 kr
FAQ
Should I let a sensitivity finder pick my mouse sensitivity?
Use it as a starting point, then confirm the feel in your game. If the recommendation feels wrong, keep your current setting. The tool is there to assist, not to decide for you.
What is the difference between eDPI and cm/360?
eDPI is mouse DPI multiplied by in-game sensitivity. It is useful for comparing two setups in the same game. cm/360 is the distance your hand travels on the pad for a full turn, and that is the value you want to keep when you move between games.
Does the Aimlabs Mouselabs Sensitivity Finder work during normal training?
Yes. Aimlabs says the updated finder runs in the background on any task, recalibrates every seven minutes of play and can use up to your last 100 sessions. You train as usual and check the suggestion in Mouselabs afterwards.
Is the PSA method still useful if I have a sensitivity finder?
Yes. PSA is a simple way to compare a higher and a lower setting until one feels natural. It is still a good option if you prefer to decide yourself, or if you don't want to use a trainer.
Should I copy a pro player's sensitivity?
Usually no. Their setting is built around their grip, their pad, their skates and years of muscle memory. A finder that looks at your own aim, or a PSA pass on your own setup, is a better starting point than someone else's number.
Why do new skates change how my sensitivity feels?
Skates change how the mouse starts, glides and stops. A smoother, more consistent set can make the same eDPI feel faster or easier to control. Give the new glide a few sessions before you change sensitivity again.
