Thanks for your reply. Out of range shouldn't be a problem I think, the RTH from the Phantom works really good. Only problem indeed is the voltage monitoring, so the OSD needs to come as quickly as possible.
Already did a short testflight with the Fatshark cam, couldn't wait any longer
First impressions are positive + a whole new world opens before my eyes
Now even more curious about using the GoPro as FPV-cam with the tilt function on the gimbal...