My 7-inch Source One got an interesting upgrade: instead of static GoPro Session bracket, I've put a gimbal on her. She might have got slightly heavier, but gimbal allows to take amazing shoots not. And it's detachable! Sure, it looks awkward a little but gets the job done. The gimbal... the gimbal is crazy cheap Chinese clone of AlexMos hardware but works surprisingly well. Much better when it was carried by my 12-inch machine. I would not put a gimbal on 5-inch racing quad, but 7-inch Source One didn't even notice the extra weight. And that's something!