JLOGIC, on 2013-March-06, 12:41, said:
I can't believe that getting to 5C is not considered a sizable plus score. If partner has a diamond void (not so unlikely) then we need very little from partner for game and he will bid it.
I think the question is hard to answer without agreements and since these sequences are frequent I find it strange that few pairs bother to define them.
For what it is worth I like to play after 1♦-1NT and all other sequences where opener has opened a minor and responder has denied majors:
DBL: Both majors, spades never longer than hearts.
2♣: hearts, but tolerance for spades
2♦: both majors, spades longer.
2♥: no tolerance for spades
2♠: no tolerance for hearts
2NT: three suiter with a void in opener's suit.
I can not show an unbid minor below the three level and can not remember having missed it.
Rainer Herrmann