Iv never heard that, but I admittedly don't know much about them and haven't looked. Maybe for real work you have to have them calibrated just like you do in industrial settings for certification etc?
I am just hoping in the rush to get things registered and out in 2025 with everything going on we don't have a repeate of the mavic 3 release with half the stuff not even working for months after......
I have been putting off thinking of going...