The root cause is that they were trying to work around a hardware problem with a software patch. In the old days, they would have balanced the incidental high-

The root cause is that they were trying to work around a hardware problem with a software patch. In the old days, they would have balanced the incidental high-aoa lift from the moved and bigger nacelles with a larger elevator surface instead of adding a jack-in-the-box surprise feature into already borderline incomprehensible autotrim logic.