A couple of months ago, a friend had a crash with his 450 and a DX7/AR7000. He describes a several second period before the crash when he had what we termed later 'partial control.' That is there was the feeling that some channels worked, most did not. There was no full loss of control like the reciever reboots, but also no failsafe as throttle was not driven to cutoff as programmed (and later verified).
Today, on my 450 with A X9303 and AR7000, I had the same problem. Much of the equipment was similar, but not all: Dimension Engineering regulator (vs CC BEC), 4S (vs 3S), servos, different field.
Paul Beard please comment on what my have happened or what we need to look at.
These two very similar events have shaken my faith in the system.