I've seen posts talking about the free-play issue all over. DJI sponsored posts say "leave those nuts adjusted exactly where they are" (tamper resistant seals will void your warrantee if broken). Others say they know better, "cut the tape and hand tighten those arms" in some obtuse manner. Really, I have to believe the company that designed and built this wonder knows how to set it up. Tahoe Ed? Sticky thread material?