I've done a 3 full auto rotations: 1: barely stayed upright, 2: fell over (this video) 3: tail boom strike
I wouldn't recommend auto rotations unless you have CF blades and doing it into 4+ mph wind. The softer the ground the better.

Heli Specs:
* Carbon Fiber Flybar Paddles rcgroups.com/forums/showpost.php?p=8967763&postcount=6048
* Carbon Fiber main blades (from H-L)
* Stock Motor/ESC
* ThunderPower ProLite 2100mah Lipos
* Chinese Tail Mod
* K&B 450 size Tail blades
* Upgraded tail case (H-L) and custom tail pitch slider (helidirect)
* HS-65HB tail servo
* Gorilla Gear landing gear

More info about mods:
rcgroups.com/forums/showthread.php?p=8562252#post8562252 Pictures of all the Falcon 3D Tail Mods
rcgroups.com/forums/showthread.php?t=642411&page=357#post8409209 Chinese Tail mod on Falcon 3D
rcgroups.com/forums/showthread.php?p=7662217#post7662217 New Tail Pitch Slider with plastic tail case