Zelandakh, on 2013-August-05, 07:36, said:
In reading this, it occurs to me that if we have "a hand that always wants to compete to the 2 level" or "prepared to bid twice", it would be better to do it straight away. In this respect, it would be logical to use a cue bid for that, say "a weak hand with 4-5 hearts and 4 spades". What is the expert standard for this minor suit cue bid? It is surely not a strong hand since it practically requires someone to be psyching for that to come up. Similarly, with an invitational hand and both majors we could afford to pass initially and then advance with a raise, cue bid or double. I am not sure what is left. Perhaps there does not even need to be an expert standard any more given how few expert pairs play a power redouble these days.
We need some way for advancer to bid a good hand, because people do make psychic redoubles. However, you could use the cue-bid the way you suggest, with the understanding that a cue followed by further action shows a good hand.
Another approach I've seen recommended is to play the cue-bid as just competitive with both majors, and with a good hand you start with a pass then take strong action on the next round.