Upgrading to "anti-gravity" tiger-motors, which will make the drone 0.8 pounds lighter, and add 2+ minutes of flight time. Also moving from Futaba FASSTest 2.4 Ghz control link to 433 Mhz Dragonlink for longer range, AND adding a remote video switch and small FPV camera on the front in case the GoPro locks up. The work is never done...