1: Antenna perpendicular to the ground or parallel with the range extender? The manual says perpendicular, but I've seen videos saying it should be parallel to the range extender. 2: Swapping Batteries. Mine came with 3, can I keep swapping them for continuous flying or will it over heat? 3: Recording FOV: 110 or 80? 4: Protection guards? Do you use any? Prop guards, gimbal guard.... 5: Vision+ Utility Pro? Worth the price?