I have some doubts about the accuracy of altitudes reported by the Malaysian Military...
It may have just stayed at 35,000' and the radar returns were so weak, they thought it was at 45K, and 23K, and then back at 35K, but it wasn't.
The part that concerns me most is the zig-zag track, if that really happened, someone was alive and turning the airplane, as if they were looking for a place to land it. That could have been the pilots, going back to the "smoke in the ****" scenario.
Or it could have been hijackers, who were looking for their secret island hide-away complete with a paved airstrip!
We won't know until we hear the **** voice recorder.
