A little more about the crash.
The night before I made some changes to the Gaui which included setting up the Naza for 4S batteries and installing a GoPro mount to the landing gear. AUW was 1650 grams with the GoPro on board (in its hard case) and a 6200 mah 4S quadrocopter battery. Leading up to the changes I have had around 30+ flights with no issues, not even a hard landing however these flights were with the Gaui totally stock (except for various landing gears) and using a 4000mah 2S battery.
My thoughts are that with my repeated removal and replacement of the props and probably me tightening them down too hard finally caused one of them to break in midair. Their stress levels must have been higher due to the added weight I was carrying and moving to the 4S battery. All the pieces that broke off in the crash were found within a couple feet of the crash site except for 1 half of the front right prop (motor 1). The prop half has never been found and I looked all over the place.
I'm glad I caught it on video!
@kloner - Yes, the makers of the tree house actually do theming for Disney. You can find there stuff at
http://www.danielswoodland.com