FC, GPS, Camera position offset?

Hi,

  • Specification -
    Skywalker X8
    M8N
    Pixhawk
    Sony Alpha 6000

With the base of GPS, FC is 15cm and 0cm offset away and Camera is 15cm, 23cm offset.

I think if GPS,FC and camera are in the same position ( offsets are zero - height is ignored ), the accuracy might be more precise in terms of survey ( mapping ).

What do you guys think of my guesstimation?