fromageGB, on 2016-January-26, 10:46, said:
I've never seen one, and I doubt if there is one. So much depends on agreements, and for any single given hand while one system/method/convention may give best results, if you alter the deal even a little, a different s/m/c will give best results. It seems a very impractical idea for a book.
Now someone prove me wrong ...
Well, there are books and documents about these issues in general.
For example many recommend that supporting partner is most likely to be what partner wants to hear, and I do not know any source recommending a 1 spade bid above.
In fact there are enough examples in literature advising to raise immediately with 3 hearts and 4 and even 5 spades.
There were those who argued that we need more ways of raising partner. e.g Hardy wrote a book about this.
One (contentious) outcome are Bergen raises and differentiations between 3 card and 4 card raises.
Drury is of course ideal when you hold a minimum limit raise like above, because you can stop at the two level.
Some have incorporated Drury in all seats, not least for this reason, but for most Drury is only available for passed hands.
I feel most of these issues have been discussed in the literature extensively, mostly in books for intermediate players and by examples often in quizzes.
So what the opener is aiming at is still not clear to me.
It's a myth that this is a new subject or method.
Rainer Herrmann