I'm working on the hangtime and the rubber neck. Also on smooth corrections and ends to maneuvers, I tend to be jerky about it and I want to get that fast-paced with-slow-smooth-ending thing worked out.
To that end I was doing just now and had a wonderful fast forward to still fast in the same direction upside down backwards flight thing going, but had a minor issue.
Minor issue: ran out of yard and hit the huge pine tree.
Camera cut out after bounce three headed in along a branch (was going fast, upside down, backward, after all), and didn't come back after walking around behind the metal hanger.
Much to my delight the battery stayed in, and my setting the blheli_s ESCs to a 2 minute beep kicked in while I was back there.
It came down out of the tree!
Nobody home on the video feed because it ripped the camera's +5v wire off the FC.
Nobody home on the RX because it ripped that +5v wire off too.
(EDIT: Snapped antenna feed wire between the base of the cloverleaf and the top of the cloverleaf too, that's a new one on me)
It was a wonderful upside down cruise while it lasted though.
How's your learning going?