Stephen Tu, on 2014-April-14, 09:16, said:
My main problem is your assertion that:
(1) Min takeout doubles with Ax/Kx in spades should pass instead because of the suboptimal placement of some values in spades. In my view, this leaves you missing 3nt/4H with say 14 opposite 11-14, when partner can't balance. It also loses some double partial swings when you can make 3 of something and they are making 2 spades. Now granted you will get some back when 3nt/3 level partials fail when 2 spades also fails, but in my estimation being able to double on something like Ax KQxx AJx xxxx is a net positive.
(2) 15-17 with something like Ax in spades should always overcall 1nt instead of doubling (at least I think this is what you implied). I personally will double with quite a lot of these, because I think I will go plus more often playing a 3 level partial in a suit than declaring 2nt when partner is too weak to move over 2nt.
I think there is a misunderstanding.
A) I compared using 3♠ to ask for a stop to using 3NT to "ask" for a stop (by saying that you would like to play 3NT, but do need some help in the stop department). I didn't compare "slow shows" to "fast shows".
1) I didn't assert so much that minimum takeout doubles with Ax/Kx in spades should pass. But there is a frequency argument. Hands with N HCPs will tend to pass more often when they have a spade stop and double more often when they have a small doubleton or singleton. So, I will certainly be able to double on the hand you gave (Ax KQxx AJx xxxx). But while I will double on x Kxxx Axx KJxxx, I won't on A Kxxx xxx KJxxx.
2) Similarly, it is not always vs never for overcalling 2NT with a stop. Again, it is a frequency argument. With Ax Axxx Axx Axxx, you and I both double. But that is as much of spade stop that you can possibly get. so your expectation should be less than that. With AQx KQJx Kxx Qxxx neither of us would double.
Rik