Jose wrote

The pilot has an elevator on the left side of the tail, and the
copilot has an elevator on the right side of the tail? This seems
very... er... creative. What are the consequences of asymetric
elevation?

Same goes all the way back to the B-707 designed in the '50s.
The yokes were connected together by a slip clutch under the
cockpit floor. In fact, the yokes were not even connected to
the elevators. They controlled the "control tabs" which in turn
flew the elevators into position. It was not unusual to see a
B-707 taxi with one elevator UP and the other one DOWN.

Bob Moore