Very good mouse materially, perfectible software

On the hardware side, nothing to say:
- Rather light Mouse (we like it or not like it personally suits me well)
- Standard Size. As opposed to some pretty impressive gamer mouse. Well suited to my "fingertip grip" (surely adapted to "claw grip" too, but people using a "palm grip" probably guide to a bigger mouse).
- Switches Omron (very famous) for the left and right click click. Switches TTC (slightly less famous) for the click wheel and resolution change button.
- Useful sensor Resolutions. Little is down to 250 DPI for tasks requiring high precision (image editing, sniper in games ...) and up to 2000 DPI for maximum speed. I use a resolution of 1000 DPI on a screen 20-inch 1680x1050. There are 3 interim resolutions between 1000 and 2000 DPI, which are 1250, 1500 and 1750 DPI, which is very significant. We can use a resolution of 1250 DPI on a monitor at 1920x1080, and 1500 DPI on a screen in 2560x1440, or a little more or a little less depending on personal preference. Here, no 4000 DPI (useless resolution because the mouse movement is in this case far too fast so inaccurate).

However, on the software side, despite a pretty interface, there is in my opinion things to improve:
- The setting of the speed sensor is supposed to correspond to what is found in the Control Panel, but in practice this is not the case. An informed user will use a 6-speed setting (of 11 possible settings) and disable laccélération pointer ("Improving pointer precision"), which will provide a ratio of 1: 1 between the displacement measured by the mouse sensor and the actual displacement on the screen. Well the setting number 6 in the software of the ROCCAT Lua results in a slightly different speed from that obtained from the control panel, which has the unfortunate consequence that both 4, the mouse pointer "jumps" a pixel (it moves by 2 pixels when it should move as a pixel). I contacted ROCCAT there several months about it, but still no fix in sight.
- It is possible to disable certain resolutions, for example switch between only two settings using the Change Resolution button (instead of the 7 available, personally I prefer 1000 DPI switch between [my main resolution] and 250 DPI [ for situations requiring great precision]); well it works, but it seems that this setting is forgotten to restart the PC.