Vincent
That's good to know Vincent. I used custom built carbon center frame plates. Carbon plate can block some RF and maybe a little magnetic interference. I have extra no holes in the thin carbon plates I use. I carefully have the connection of all the power wires in the center of the center plates. The positive and negative five wire connection are stacked one on top of the other and all leads are twisted tightly as close as possible to the connections. The quad flies very well but sense I have three AQ multicopters I've built I have not focused too much on how well the mags are working. I think they must be doing well because the quad does missions very well.
One other thing I did is put the AQ board in an aluminum box to protected it from damage, mosture and because it can help reduce magnetic interference. If you want great performance from the AQ it's all in the details.
I have not tested how well all this type of detail helped but I don't think it hurt.
Larry