Shuttleworth
You and I both know that while your stats for senority positions may be correct; you are a bit out on the seniority required for a command; just look at this years cassandra!
737 commands were down to 2100 ish, Airbus 1800/1900 ish, and 777 commands below 1100...........
In addition, as Ham Phisted says why the urge for command ? BA gives FO's a lot more, and (longhaul) is far easier than charter lifestyle.