A heli pilots nightmare, losing the tail.. ewwww....Yeah that little piece of gas hose that holds the tail rotor is nice for beginners so it flys apart if you strike it, it needs to be checked before every flight. For better piece of mind it can be replaced with a small retaining collet, I dont know the diameter of the tail shaft, I just happen to have had one in my little box of goodies that fit. As far as the carbon sym blades on the 10t pinion of the stock motor, I'm sure it'll fly though you may not have the power without the gear reduction to use them to their full potential, and the added strain on the motor may heat it up a little more than normal.