RE: Avistar question
The rubber bands are there for a reason. New flyers will hit the ground alot with the wing this will let the wing give a little were as the bolts will not. Bolts are fine but if you hit the ground you must take the wing off and check the mounting blocks because they will crack. I would stay with the rubber bands till you are landing or taking off without hitting the wing. Don't ask me how I know this.