Posted 2010-July-13, 14:12
My oldfashionedism showing through once again:
It will be responsive if and only if you've agreed to play responsive doubles this high. Otherwise it will be penalty. The actual hand you've posted is a tough one, on which I'd lead toward 5C but can see a case for passing or (if its your agreement) making a responsive double.
A quick scan of the posted convention cards on the USBF team trials site shows that almost everyone who made it to the late stages of the event plays responsive through 4D, 4H, 4S, or simply checks the "responsive" box without saying how high.
The built-in BBO Advanced convention card recommends regative and responsive to 4D. On the other hand, with pickup partners at live games, it is VERY rare for me to have a partner willing to play these above 3S (more often you have to talk them into using them at all, or raising the limit from 2S to 3S) -- I literally remember one, and only one, time that I've had a partner want to play responsive to this level. With an unknown I would assume responsive doesn't apply at the 4-level.
P P 3♦ X
4♦ ?