Cascade, on Feb 18 2008, 10:50 PM, said:
7♥ seems very normal after 4♥ but at this vulnerability I want to try and convince the opponents not to sacrifice.
I like 4♠ giving the illusion of a spade loser.
Over the pass I think I bid 6♣ as if I am still looking for something else. Now when I bid 7♥ later the opponents will imagine I am not that confident about all of this.
I think the best way to get them to not sac is to bid 7H over 4H immediately. If you bid 4S LHO can X and RHO can save, or LHO can bid 5S (yes that would be unusual but...) and RHO can save. To me the best way to get them to not save is to not allow them to COOPERATE in finding a fit, and just make them guess to do it.
The thing is assuming they think you are competent, once you bid 7H no matter how you got there you rate to be making it. If you have a hand you're gambling with it's more likely to be 7H immediately, rather than investigating and then bidding 7. If they think you might be having a screw up then fine, but I think it's more likely that going slow, especially with a 4S bid, allows LHO to show spades and RHO to suggest a save or RHO to just save etc.