Hi Wilin, most say the plastic molded parts on the heli head just break during hovering flight, for no reason. I made roughly 50 flights with my CPP and never had a plastic part break. Below is a image of a aluminum head that I recommend, if u like your CPP enough and can fly it without crashing. I added the aluminum head cause, my heli has some 80 flights on it, without a single blade strike, much less a crash. The aluminum head has zero slack in it, heli fly's much better with it. If u add the HH gyro, u may wanna consider the twin tailmotor setup, image below. HH gyro will make those tail motors turn and burn. Most think the motors burn up, but I found most of the time, the motor bearing just gets out of place and doesn't allow the motor or motors to turn, I would do the smart thing and simply replace them. The main motor goes out after, roughly 25 to 35 flights. When the main motor goes out, I replace it along with the tail motors. I like to prevent crashes, not create them. The CPP, has broken many wallets, for numerous reasons. Treat your CPP and other heli's with total respect and you'll have a zero crash record like me.

Corey