Hey JBL99,
The control inputs required for safe aerobatic flight will be very well known to you after dozens and dozens of hours of competent aerobatic instruction in a FIXED WING aerobatic aircraft. After that training, you'll realize that there really is no reason to attempt aerobatics in a helicopter. They are so much fun to fly at all, why would you want to have one upside down? We have aeroplanes for that!
Cherish your opportunity the helicopter - I do, but save the aerobatics for the aircraft types designed for it. Aerobatics themselves, correctly flown are not really dangerous, but a mistake during aerobatics is very much less forgiving. Main rotor hubs and masts are supposed to stay away from each other, as are the main rotor blades and tail booms.
Fly safe, Pilot DAR