tonyh:  Earlier today (on another site) I doubled my opponent.  But I have a man on the bar, and my opponent has a closed board.  Meanwhile, on my side of the board, my opponent has one man back, behind--but not immediately up against the edge of--my 5-point prime.  I double him now--I do not wait, which would give him the chance to roll a 62 that would jump my 5-prime and probably win--perhaps even win a gammon.

I double, thinking that it is more likely that he will have to break his board (allowing me to enter) on the next move or two.

But if I were auto-sleeping, and could not double until I actually had a chance of re-entering...I think it would be too late.  My opportunity would have been lost.

I can hardly wait to conduct a long rollout of the position, to see whether my cube decision was correct.  Maybe I'll post a link to the position, once that match is complete.  I think it's interesting.  Even if I'm wrong, I'll learn from it.