Great comments ................. This confirms my beliefs in that this is a serious operating issue with the AirBus A300/A310 aircraft in profile mode especially in the descent phase of flight. I agree that ASAP is an avenue to illuminate and get more attention to the problem but I don't agree that it will result in any $$$ spent to get this remedies any time soon. So, if we are to tell ATC that we are unable to fly the required OPD arrival due to our aircraft deficiency in Profile, they would have to revert back to the old way of working us inbound which is what they do part of the time anyway ............ radar vectors and assigned altitudes. Is it going to down the aircraft if we make a maintenance writeup such that indicating that Profile is unable to conform to flying an OPD ??? What say you ?