How do you know if the setscrews for the swaybars are tightened correctly? The manual says "tighten to remove free play but ensure some movement". It seems kind of hard to have no free play and some movement in the same instance...

How long should the antenna tube be? Does it have to extend outside the body? It doesn't on my MERV and I've not had any control problems with it. I'll be using a Futaba 4PL and the receiver that comes with it.