Malaysian Airlines MH370 contact lost

[xcitation]

Assuming the hijack hypothesis are we talking a very skilled pilot with planning or an extremely lucky amateur?

Data points:

1. Precise timing of disappearance at the minute when switching between Malaysia and Vietnam airspace.
2. FL450 excursion when heavy requires skillful handling at performance limits (maximum energy climb). [contested by some posters with experience on type. However service ceiling is not absolute ceiling!]
3. Cruise at FL295 which avoids outbound/inbound traffic.
4. Follows border between Thailand/Malaysia when crossing peninsula.
5. Minimal air defense monitoring at night - opportunity to leave the area before dawn when full air defense is active.
6. A/c avoids areas with active radar coverage.