Posted 2010-January-14, 19:33
Going back a long way, no matter what the situation is in most cases, I tend to be one of the hard-liners, and I would allow the switch. EVEN IF partner has two hearts and 5 good diamonds, even without the A, my hand will play 1, maybe 2 tricks better in hearts than in diamonds, and even if I just get to hand once, that should be worth at least half another trick. If partner has three hearts and 5 good diamonds, even better!
The chance of partner being right opposite xxx xxxxx xxx xx - the chance that his hand will play more than that one-and-a-half to two tricks better in diamonds than hearts - is almost nil. With the yarborough posed by the OP, if this auction happened, my partner happily announced my 2D bid as a transfer, passed it, and I got a chance to make another call because of a double, I'm still bidding 2H.
In other words, while the discussion is interesting and potentially relevant, whether the UI makes 2H more attractive (which, of course, it does), and whether transfers on without a double mean anything as to whether transfers are on in a doubled auction (which I have to play here and don't think is wrong opposite strong NTs, but when I get a chance to bid weak NT, it *certainly* doesn't), in this case doesn't matter (to me at least). The reason I was taught to transfer with these hands is that 2H will usually play better than one trick better than 1NT because declarer isn't handlocked playing in hearts - the same argument applies (only more so, it doesn't have to be even "one trick better") when "better than 2D" is concerned; with this hand I can't count Dxxx as an entry, but I have reasonable hope that it will be enough to bring partner's suit in.
Give me the HK, or DQT, or some other reasonable hope that partner can get to board, and we are at my border.
Long live the Republic-k. -- Major General J. Golding Frederick (tSCoSI)