moistfinger: Your idea is correct. I HAVE doubled from the bar before, not often, but not never either. It is a good play in some situations. I wouldn't want this option to be taken away...
Note that if you CANNOT double (because the opponent has the cube, or it's post-crawford), it DOES Autopass. So it is not an be-lazy-and-save-some-code-problem, in the contrary, it is doing it even more detailed and correct.
(hide) If you are waiting for your turn, click on "change" next to the "refresh" on the main page, then set refresh the page to 30 seconds to get your turn to move displayed faster. (Servant) (show all tips)