The upgrades, depending on the package selected by your airline, have only really changed the reliability and function of subsystems, like bleed air, anti-icing logic, etc. The basic guts of flying is unchanged. So when you are hot and high descending FLCH, where are the power levers? You are stupid enough to use VNAV, so where and when will the aircraft pitch forward and overspeed you? I trust this aircraft little as I would a rabid dog. And that is after eight years.