Interesting even though I don't plan on lifting anything. It appears the Mavic is much more stable than the Phantom. I couldn't see where you attached to the Phantom but the landing pads on the Mavic are aft of the center of lift so inherently if there were full thrust on all props it would pitch nose up. Therefore to keep level it has to reduce thrust on the forward props. Also if you attach to just one landing pad it would also slightly reduce thrust on both props on the other side. If you could rig a bridle that put the load about under the forward sonic sensor you should be able to get a little more lift. I am glad the Phantom survived as the crash look awful dramatic.