helene_t, on 2015-February-20, 07:11, said:
I think West can make a cuebid over your 4♦ bid, presumably his 3♦ bid already showed a minimum so he doesn't have to be ashamed of his hand. You could check for keycards then. But 5♦ is likely to be poor at matchpoints so it is best if your methods allow you to stop in 4NT. With my regular partner I play your 4♦ bid as keycard asking in this sequence after which 4NT is to play.
You could have cuebid 3♥ yourself just to hear that partner has a spade control but I don't think it matters.
But yes, dbl is better, especially considering the vulnerability.
Why do you think 3
♦ showed min Helene? I mean, was he supposed to jump around to show extras, suppose he had A of dia, AJTxx for example, is this good for jump to 4
♦ when they are already in forcing auction? Or do you suggest 4
♣ 3
♥ cue to show extras? I mean how much longer shall we cue we are at 4 level no one knows what shape opener holds. I think 3
♦ should not show min, but rather an attempt to describe his hand, no? I am not criticizing you, I just wanna know what would be your approach with extras. I may as well be wrong.
To me, anyone who bids 5
♦ in this auction (W) definitely denies 2 keycards.