Buzz, I feel your pain. Did it for 4 years. Loved the plane once I figured out VNAV (my first glass). I was surprised when I came to the 765 that it doesn't always hold everything together either. Not to the extremes of the -800 but not up to the high standards I had heard about on the vaunted 767. Of course I don't discount operator error!
PS--6.6 hrs, JFK-SEA, winter, pre- inseat video. Loooong flight in an -800!