The PRO is necessarily not designed for aerobatics. The SPORT is however and you can choose from AP, SPORT, or EXPERT modes. It is difficult to flip the PRO unless you have significant altitude and GUTS.
The hf pro board can be disarmed by just dropping the throttle? theres no arm/disarm sequeunce? I haven't even hooked it up to my pc, just read the manual a few times.