They, DJI says, Robert) when I say smtng I mean what I mean and know what i'm talking about)Who says they don't want to give PID tuning? You mean because they haven't yet is more accurate.
Okay, what you say must be law and never altered. That blanket statement of what you say is funny.
All I'm saying is algorithms can be modified and improved. DJI has a very great track record of doing so. See I have been with DJI from the get go, I have seen many times where algorithms have been improved, features have changed etc.. To think they wouldn't is once again funny.
But that is my 2 cents if its even worth that.:dejection:
Yes, the xyz measurements are for the IMU and GPS in relation to the crafts COG. You really must take some time to calculate your COG, don't assume it is in the center. I found the most important variable for the GPS is the Z axis. If you are carrying a landing gear, batteries and a camera below the center plates, your COG will most likely be a good distance under the plates. Mine is about 7 cm under the bottom plate. This will make your z settings for both the IMU and GPS a NEGATIVE VALUE.
The bummer part of all this is that I have different battery setups (1 - 6200mah, 1 - 5000mah or 2 x 5000mah) and the software only allows you to use one value. When I switch to different batteries my COG changes.