jodepp, on 2015-June-30, 03:48, said:
I also confess that if I were to act I disagree with the (vast) majority's choice of action - 4♥ (with all its warts) has to be the action with the most upside, doesn't it? Are we REALLY saying that probably landing in four-of-a-minor is what we want to aim at?
I think that if p bids 4m we probably don't have the values to make 4
♥ even if we have a 5-3 fit. It could happen that we play in a 4-3 fit in diamonds where a 5-3 fit in hearts is available. But at least they don't often double 4m at IMPs.
If he bids 5m (or 4
♠ or 4NT whichever offers us a choice), our minor fit is likely to be better than our fit in hearts. If we make a trick more in 5m than we would in 4
♥ it doesn't matter. He might also bid 3nt but that probably has very similar EV to 4
♥ even if he has a heart fit.
So I think that when p has 4 or more hearts it usually doesn't matter, if he has 3 hearts there is a quite good chance that it doesn't matter either (and could be better to double if we are allowed to play 4m undoubled while 4
♥ would have been doubled), and if he has less than 3 hearts, 4
♥ could easily be a disaster.
The world would be such a happy place, if only everyone played Acol :) --- TramTicket