I haven't tried this out so looking for advice. I have good skills flying Atti. Can I fly the phantom in Atti mode without GPS covereage ? I would think that if I start it up and let it initialize, not get GPS, that once it is done initializing that I can flip to atti and fly wiht no issues. I guess the question, is it in manual mode then or will it still attempt to maintain attitude when sticks are released ? Pretty basic question I know but wanted to hear answers before just trying. Flying this way would be great in my backyard in a smaller space. Thanks !