georgi, on 2012-November-17, 09:07, said:
Just fixed not to promise 11+TP (11-12 here) with fewer. As having only 8TP here.
It will bid 3♠ here now.
That rule is quite below in prios, so with enough points GIB will bid its major, but 4major (with jump) promises 5+ length.
Is it playable to have 4M promise 5? What if advancer is say 2443, 2434, bad clubs doesn't want to play 3nt. Cue bids, shouldn't opener with 4-3 in the majors bid 4 spades? 4-3 fit is sometimes only game, hard to get there if advancer can't bid it.
I think 4M should only promise 4 (and 3- other major), but:
- with 4-4 in the majors and 4 level strength cue bid instead (if not enough for 4, bid 3s)
- with 4 cd in only one major, stopper in preempt suit simulate between 3nt/4M.