pescetom, on 2019-October-03, 05:58, said:
A double now would promise exactly 4-card spades and suggest clubs too.
I don't see why this should suggest clubs. If 1S promises 5 cd spades, one needs a way to show 4 cd spades with hands that have alternative homes in notrump (heart stop), diamond fit, etc., that don't necessarily have much club length at all.
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How do you decide to bid your black suits now?
Bid them directly, and if so in which order?
Clearly 2
♣ followed by bidding spades twice. (Or maybe spades only once if East bids a lot of hearts)
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Or double anyway and then bid both suits if necessary?
Only if 2
♣ is being played as NF (negative free bids). But this is a hand why I don't like negative free bids, east can preempt after dbl and you haven't mentioned a suit yet.
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Or cue 2♥ and then the same?
2
♥ would promise diamond support and deny spades or primary clubs. Free bids are forcing so there is no need to cue to force; cue can be reserved for support hands.