Considerations about Y6B layout

I am planning to rebuild my Y6B copter. At the moment it is based on the Hobbylord Alfa Y3 frame. Here are some questions:

  1. Should the Cube be right in the center of the frame or can I move it somewhere else?
  2. Should the external GPS antenna in the center? At the moment it’s around 10cm behind the COG.
  3. Each motor should have the same distance to the center and yeach arm should have 120°? This way the drone will be always nose heavy.

Bye Jim.

Cube doesn’t need to be at the COG neither does the gps.