Meanwhile he also did 2 calculation using 2 VRS providers 
Fömi: 46.87629729 - 18.5408981 159.95
Axiál: 46.87629732 - 18.54089811 159.97
NRCAN + ETRF2000: 46.87629736 18.54089816 161.938
If omnicalculator is good:
Fömi → NRCAN → 9mm
Axiál → NRCAN → 6mm
Fömi → Axiál → 3mm
BUT the height is off by ~2 meters… Which doesn’t matter much for the tractors but if we expect to use this with drones then maybe the height also matters.
Is there anything we could do about the height? does it matter in your opinion?
Thank you for all your help! At least X-Y axis we’re good.
Maybe U-Center offsets the height by ~2 meters?