I bought a 4 as my first drone? I have built RC planes and cars for years. I have some questions that have probably already been answered but as a nubie I am overwhelmed. First, my video sucks alot, has lines, freezes, started after software update. Second, my drone goes up in a spiral, I have tried calibrating my controller but this never changes. Third, the range is not any where advertised, do any of the boosters really work? And finally, the third time I flew the drone some little finishing covers fell off the landing gear, where can I get some. I have taped the remaining two.