gszes, on 2013-October-06, 08:45, said:
think of it this way--4N to play aims at a very very teeny tiny target (a bit bigger at MP)
where the hand makes exactly 4n and 5d fails. In order to shoot at this very difficult to
see target we essentially must give up on slam exploration. It is just too much to give
up for such a small opportunity.
Save your cue bidding for hands where you cannot take control and use 4n rkc when
you can take control. This is especially important at IMPS but still important at MP.
We are trying to tune our bidding approach to matchpoints, for what it's worth (I recognize that was not in the OP). And I think the target is more than "a bit bigger" there...4N will be superior to 5C many many times.
Also, not sure it is right to say we'd be giving up on slam bidding entirely if we have no ace-ask. Even with no ace-ask is available, we can still cue-bid our way to slam. AND, the very interesting meta-rule proposed by Fluffy (4N=ace-ask if you first cue-bid) seems like it adds to the arsenal.