Phantom FC40 w/ Ebay Gimbal and GoPro flight times (before first red blinking light): 8 minutes with 1 2700 Mah thunderpower battery 9:20 minutes with 2 dual-mounted 2700 Mah thunderpower batteries (flew aggressively in both GPS and ATTI mode) Will test soon what flight time is with 2 dual-mounted 2200 Mah stock batteries. I was disappointed in the dual mounted time with 2 2700s. Anybody else have flight times to share for the FC40s with gimbals attached? I have a Walkera but am still struggling with how to externally mount it. I don't have the time/patience for carving out the internal battery compartment.