Cyberyeti, on 2015-February-11, 17:01, said:
The problem with your second auction is that you might well bid 7♣ as after 1♠-1N-3♣ the small hand might find it difficult to determine whether partner has AKx or AKxx to decide whether to bid the grand.
which is why one should play science after the jumpshift to clubs. I suggest, and have played for years:
3
♣ is gf, artificial and includes 3 hand types:
5+ spades, 4 hearts. Reserves 3
♥ jumpshift to promise 5, which makes responder's task easy with, say, x xxx in the majors
6+ spades....a very strong one suited hand, just under a 2
♣ opening
5+ spades, 4+ clubs.
Responder usually temporizes with an artificial 3
♦ enquiry.
Now, as it happens, this won't work well on this hand, but I wouldn't have adopted the 1
♠ 3
♣ plan, since the opening hand is, in my opinion, a tad too strong.
If I'm allowed to use a common method, probably far more common amongst good players than the OP method, which is abysmal (I know, all of us sometimes play methods we don't like, so that isn't a shot at the OP), it would go:
2
♣ 2
♦ where 2
♦ is a semi-automatic gf response with at least a K
2
♠ 3
♣
4
♣ 4
♦ where 4
♦ is kickback
Responder will find out that the club Queen is missing. Imo, opener with AKxx in clubs should show the Q, since it is extremely unlikely that responder would introduce Jxxxx as a trump suit over 2
♠, so responder need not worry about that holding of AKxx.
Responder will place the contract in 6
♣.
Using the OP constraints, well...I think the 'system', if we can dignify it with that description, forces a 3
♣ response, and now we're all just guessing, but I would expect opener to drive to 6
♣, remembering that he opened 2
♣. Of course, people who play this method may not play keycard and so can't find out that the club Q is missing and may just gamble a grand....if so, it should be 7N, of course. Sometimes science just gets in the way....7N is unbiddable by any good pair, yet has, apparently, 15 top winners as the card lay
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari