So my friends wants me to get some shots for him of somebody standing along the balcony of a penthouse. Obviously top floor of a pretty large building. I have flown 100s of times in all types of conditions. However, I never had the experience of take off from the top of building. Once I launch the Phantom 3 from the top floor and it is lets say 15 ft hovering. What happens when I fly off the edge of the building. Will the sudden height change make the P3 want to drop in level or should it be ok? I think launching from the top of the building will be better as I will be able to have a nice view of the Phantom rather than launching it from the ground going all the way up. Any advice or tips appreciated.