Originally Posted by nachoz
How will I know which firmware it comes with? I plan on buying it from a local computer store. They have the original Abyssus aswell as the mirror edition.
You have to check in the driver software. See if you can find the firmware version in the picture. It'll be like that. I don't think there's anything on the box at the store that will tell you about it.
The acceleration they talk about is kind of a useless stat. They're saying that the sensor can accurately detect how fast it is being accelerated (by your hand) up to, let's say, 20g. That's about 200 m/s/s. But see, I highly doubt that it is physically possible for you or anyone else to accelerate anything at 200 m/s/s.
It's something they slap on the box to impress people, like high DPI and "laser".
I'm pretty sure that all laser sensors are worse than optical sensors. The older ones had worse control speeds than the WMO, IMO and IME 3.0, middle of the road laser sensors like in the g9 and roccat kone were fine, but there was nothing to warrant their purchase over the already proven optical mice. Plus, like all laser sensors, the have worse lift off distances. Current gen laser sensors either have the bad kind of acceleration, or just don't work at all.
An Infrared optical sensor is still optical.