I broke motor mounting plates, motor mounts, one of the boom arms, landing gear rails and arms and even broke the center plates. The only original XA stuff left on my quad is the electronics and the landing gear arms. I'm trying to work a deal with a local cnc shop to make some aluminum center plates and motor mounts and landing gear so I can build my own. Similar to the airfoil but with some better mods for half the price of theirs. $6K+ for a quad with $150 worth of parts and another $1500 for electronics (high end) is just crazy.