[Vampyr]

 blackshoe, on 2020-April-16, 09:57, said:

Is "Crowhurst" not the same as "Checkback Stayman"?

No. Crowhurst allows rebids at 2NT and above.

 mikestar13, on 2020-April-16, 11:27, said:

I go one better 1NT-(♣)-X is playable as Stayman if and only if 2♣ doesn't show a specific suit (say in Cappelletti/Hamilton where 2♣ is an unspecified one suiter)

Yes, this is the normal agreement.

[AL78]

 Vampyr, on 2020-April-08, 23:48, said:

We play a wide-ranging protective NT, with Crowhurst-style continuations. You are probably thinking of Crowhurst.

Yes Crowhurst was the name than escaped me. I have played Checkback which is similar to Crowhurst but doesn't have the 12-16 1NT rebid, which is the bit of Crowhurst I don't like.

[Vampyr]

 AL78, on 2020-April-17, 04:32, said:

Yes Crowhurst was the name than escaped me. I have played Checkback which is similar to Crowhurst but doesn't have the 12-16 1NT rebid, which is the bit of Crowhurst I don't like.

A 12-16 1NT rebid is a little odd, since most pairs have a 1NT opener of some description.

[blackshoe]

Playing Romex, a 1NT opening, if balanced (it need not be) is 19-20 HCP with six controls. A 2NT rebid is 17-18 HCP. A 1NT rebid is 12-16 HCP. Over the 1NT rebid, the system specifies Two-Way Checkback Stayman (not XY1NT) where 2♣ is invitational and 2♦ is game forcing, both asking for a four card major.

Been a long time since I played Crowhurst. Guess I mis-remembered it.

[arepo24]

 jamf1, on 2020-April-07, 00:56, said:

Thanks to all for your thoughtful and insightful replies

I am in complete agreement with you.
My partner and I don't like transfers in minors because NT is preferable and the minor suit, if a good one, will work well in NT.
I believe that transfers are on after interference. It is a partnership agreement and permitted. That stolen bid sure works well for us.

[AL78]

 Vampyr, on 2020-April-17, 04:48, said:

A 12-16 1NT rebid is a little odd, since most pairs have a 1NT opener of some description.

I think one reason it is done is so you can open 1♥ with a weak NT and a five card suit and not risk losing a 5-3 heart fit if responder bids 1♠ and has the values to invite game (I'm just guessing here).

[Vampyr]

 arepo24, on 2020-April-25, 16:54, said:

I am in complete agreement with you.
My partner and I don't like transfers in minors because NT is preferable and the minor suit, if a good one, will work well in NT.
I believe that transfers are on after interference. It is a partnership agreement and permitted. That stolen bid sure works well for us.

Transfers on after interference is a very unusual agreement. You might want to investigate Lebensohl, as others have no doubt noted.

[Vampyr]

 AL78, on 2020-April-27, 08:41, said:

I think one reason it is done is so you can open 1♥ with a weak NT and a five card suit and not risk losing a 5-3 heart fit if responder bids 1♠ and has the values to invite game (I'm just guessing here).

This is risk of course, but the wide-range NT rebid has serious problems of its own.