Top Bunk
I'm sure that Shaman was delighted with your considered and courteous response. I'm sorry that you feel it improper for mere outsiders to comment on the golden calf of bidline but actually the principles are quite well known to those of us who have not had the good fortune to work for BA.
In truth, it was only marginally equitable in the bygone era when a pilot joined an airline in his early twenties and stayed put for his entire career. With DEPs now coming in at a variety of points in the experience scale, it is good only for those who have been with BA from the beginning and therefore completely obsolete. I can understand the old hands wanting to hang on to it now that they can reap the benefits but it doesn't make it the right system for the 21st century.
If the airline grasped this particular nettle, I dare say that after the seismic eruptions had subsided, a much happier workforce would result. It might even save money.