Luis,
I would like to suggest that that 2NT-3NT-4x-4NT is better used as quantatitve slam try with minor two suiter than as an "oh my god, I use this because I can't remember what the heck my bids mean". I guess you could agree to play all 4NT bids forget the rest of the auction, I screwed up and want to play NT if you like, but somehow, I suspect a pair that has to have this kind of I forgot what we are doing is not a good example of how we should try to teach people to bid. Nor is the fact that a pair has a "I forgot what I am doing bid" a convincing argument as to way the bidding should go. Maybe moscito players may have a leap to 4NT in the middle of a relay auction as "I have got lost, let me out... " I knew one relay precision pair with a similar agreement...but maybe then they are playing the wrong system.
But let's move beyond the concept of forgetting what a pass means in a forcing pass situation as a defense for pass being exclusively non-encouraging and double as encouraging. Instead, let's consider this as an absolute premise, does reverse the meaning of these two bids really have merit (I know you have not suggested this is how you play forcing pass, btw, only it proposed it as a strawman so far to explain how it might be played)?
Within this context, lets consider the auction I gave earlier..
1
♠-(3
♥)-4
♥-(5
♥)
? ?
Now within this context, pass being "weak" or minimum, and double being extra's. What is,
- An immediate 5♠ bid?
- Pass followed by 5♠
- What if you have a good defensive hand, and poor offensive hand, what do you bid?
- What if you have a good offensive hand, but poor defensive hand, what do you bid?
- Pass followed by raising 5♠ to 6♠?
- Dbl followed by raising 5♠ to 6♠
- dlb followed by no chance to bid again?
I hope to show by this example the pass with bad hands, can't cover everything. If you double with a great offensive hand wanting to invite 6
♠, then you may end up playing 5
♥X instead of 6
♠. If you double with a extra values but a defensive hand, you may end up playing 5
♠ - maybe doubled yourself. If you bid 5
♠ as an invite to slam directly, you have not clarified the presences or absences of a
♥ stopper. If you pass with all weak hands, and your partner reopens with a double, he is doing so without a clear view if you hand offense to defense ratio is slanted towards offense (since you had to pass) or defense, or either. If he doubles and you are weak but offensive, it might be right to bid on, or it might be right to pass. Remember, your PASS didn't convey uncertainty about rather to defend or play offense, just that you lacked the "encouraging values' (whatever that is) for a nebulous double.
Now imagine a true forcing pass situation. Here, a double by you would suggest that for the bidding to date, as opener, your hand is better suited for defense than offense. Of course this is not a demand that your partner pass. If instead you bid 5
♠ your partner knows that you have an offensive hand, but no slam interest (or at least, no
♥ control). If you pass the decision to partner, he is allowed to look at his hand and decide how to proceed (pass of course is not an option). With an offensive hand, he can bid 5
♠.. and if you had a slam try hand and a
♥ control, you freely bid 6
♠. If he has a defensive hand or a neutral (average defense, average offense), he doubles. Now if you truely had the yucky hand that you could not decide what to do, you pass and play defense. If on the other hand, you had the slam try hand, you bid only 5
♠. Now your partner can reevalaute again, and decide on 5 or 5
♠.
So while using dbl to show 'encouraging" values and pass to show discouraging values seems like a painless swap of the meaning of the forcing pass versus the double, it really is not. It will be very hard to make an intellegent decision at high levels when you bid like this, at least imho. This is way too high a price to give up, even to cover times where you are afraid your partner will forget it is a forcing pass situation.
Ben