Total rookie here in Texas. Just pulling my Phantom 2 out the box, and already, questions arise. Maybe you experienced pilots can help. Question 1: Regarding flight time and battery life ... Do you confirm (or refute) the manufacturer's advertised flight time for the Phantom 2? What is your practical field experience? (2.) For shooting aerial footage and stills of ranch real estate, sporting events and such, I likely will need 20-30 minutes in the air. Maybe more. Will one extra battery suffice? (3.) Any Phantom pilots out there shooting video with GoPro 3+? If so, based on my needs as posted above, how much memory do I need for the camera? Thanks in advance for sharing.