I dont think anyone would double if there is no chance to come out of the bar, if they manage to get out then they should play the powerball instead of backgammon :)
and Pythagoras,,yes the my link works if you copy and paste it...dont ask me why it doesnt work if you just click it..i havent added anything.
Andersp: As aggressive as you are, I'm surprised you would talk this way. Of course, the sense in doubling would diminish as the strength of your opponent's inner table increases. However, let's say I have three pieces left on the board and my opponent has two pieces back and a locked up inner table. I double in a heartbeat! What are the chances my opponent catches up to me before I get out and around?