Okay, i want to get into scratch building just because it seems fun and i can say the plane is truely mine when its done. the question i have is when building the wing, do i use THIN PLYWOOD for the ribs, or THICK BALSA?? Obviously the balsa will be lighter, but the plywood will be stronger. i have never built a plane before and havent looked too closely at kits. does anyone have an answer?</p>