CB is actually a pretty tough material. It's a type of fiberglass after all, or a composite material anyway. Very hard to break, speaking from years of working

CB is actually a pretty tough material. It's a type of fiberglass after all, or a composite material anyway. Very hard to break, speaking from years of working with it. Since you need electric circuits anyway, and a material that's not heavy but sturdy, you could stomp two birds with one stone and use CB instead. It's a pretty popular solution among those who build small quads.