hrothgar, on Apr 21 2006, 10:13 AM, said:
From my perspective, once West decides to pass in direct seat over 4♥, he can't try to improve the contract by bidding 5♦. (5♦ should be some kind of fit showing advance)
Maybe this is normal I am not sure.
It seems to me though that it is inefficient.
My experience is that I will often bid 4
♠ on this type of auction not completely sure that spades is the right denomination.
If we then make partner's only options to raise spades we are going to be in a bad space.
4NT = RKCB (I assume) so we are raising spades
5
♣/
♦/
♥ = show a fit
5
♠ = raise obviously
So we have five bids to show a fit and nothing to say we have a suit but were too weak to introduce it over the opponents pre-emption.