I have flown several well set up T-Rex helis. Maybe 10 seconds hands off, and it was a grab at the end to keep it from crashing.
You have to fly the T-Rex (where have I heard that before?)

jerryde,
Are you considering move up from the CX to a T-Rex?


Correction - Now that I have thought about it more, the 10 seconds was with my old Piccolo FP. The T-Rex has not seen much hands off time at all. Just a few seconds to bump the trim now and then.