It looks like Hobby King still sells the old Turnigy Talon Tail Servo Mount Set for $10 US so I may have some DIY fun converting the rear motor on the FireFLY6 to swivel. It uses a 10mm carbon bar that I can adapt to the Turnigy 14mm outer tube diameter. The lighter FireFLY3 hovered at only 245 watts so it might be worth continuing my project a bit further. The two short (spinning) hovers below show that my power level was around 1600 pwm or just above half using 10" props. I can always go to 11" props as well.