Can someone tell me what exactly i need to do in order to prepare my heli before flying it so i dont get blades flying off and a extremely wobbly and horrible flight. how do i adjust the blades? how do i know if there well placed? what does curving them do? how do they get curved? i read that some people make there blades shorter? whats up with that?i want to fly my dragonfly 4 v3 outside eventually once i get it and learn to fly it, is there any modifications i can do to make it fly outside a little better?