jakob_r, on Aug 10 2009, 08:19 AM, said:
This is quite a hole in the agreements of the EW pair. If the double is not for penalties, then 2♠ must be natural. If 2♠ is not natural, then double must be for penalties.
EDIT:
By the way, regardless of the vulnerability, par on this hand is 4♠x down 1, as NS is cold for 10 tricks in hearts and always has 4 defensive tricks against spade or diamond contracts by EW. But I would not be surprised to find NS going to 5♥ over 4♠ or 5♦.

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