It took me quite a few trys to figure out the foam gimal blocks too. I bought my 920+ new discounted about 18 months ago, but was quickly disappointed with 2 major negative aspects.
1) Inexplicably, although advertized as a "professional" copter, Yuneec would not or could not apply the NFZ waiver code, even though as far as I know it has the same flight control board
as the H480 which I had sucessfully applied the NFZ waiver from Yuneec on 2 H480 copters.
2) A well discussed problem on this forum: The 3 "new" batteries included are practically useless and yielded only about a 12 minute first flight with the CGO4 on board. So like others, I have had to research for alternatives and am now using 2 Gens Ace 5000mah batteries which work very well.
But, I really like the look and size of the H920+, its an impressive bird and always attracts interest when I bring it out for occasional missions. I am still learning how to use the CGO4 camera which has a full compliment of settings.