Originally Posted by DozyWannabe
The fact is that whether you can see the sidestick or not (and FWIW in the sim I could get a good idea of what the guy in the opposite seat was doing with the stick based on his posture), a combination of monitoring the aircraft's response plus timely and effective communication with your colleague in the opposite seat should nullify that potential problem.
One more time : The fact that a "timely and effective communication with your colleague in the opposite seat" is necessary, makes the point that something is missing.
By their presence, the yokes make such verbal communication unnecessary.
Unambiguous direct and free information to all in the flight deck : Priceless !