Cyberyeti, on 2019-February-21, 16:28, said:
I agree you can't play this method playing strong NT, the key is that you don't need 2N for weak and balanced so it is GF.
It is only a problem for us in the following circumstances:
Partner has honours ONLY in partner's major and diamonds, but <4 of partner's major and minimumish values. As I said, this hasn't happened to us before in 20 years.
We play different methods over 1♣-2♣ with an artificial 2♦ which would handle this hand easily with the minors reversed as 2♦ shows extras and partner will commit to game, so this may be why we've not seen the issue before, it's a diamonds only problem.
If I understand correctly (and I am drawing inferences here so may well be mistaken) the main problem you have is that you have bundled 4 card major hands into your inverted response. I don't understand why you do that: I have played a lot of weak 1N methods, including 12-14, 11-14, 11-13, 10-12. Good methods after 1m 1M make finding the minor suit pretty simple, so I really don't know why you do this, not to mention that you are vulnerable to preemption, to at least a modest degree [for example, 1D (P) 2D (3C)...yes you can probably back into a major much of the time, but when 2D could be based on a 9 count, it becomes far more difficult than it need be, both to find the major and to know who has what strength].
In any event, the need to untangle the majors means, I am guessing, that you have to have opener's rebids of 2M as natural, which imo is an amazing misuse of bidding space principles. I've played two quite different but detailed inverted minor methods, and central to each was the availability of 2M for opener in an artificial meaning.
In my current method, 2H is most gf hands, and 2S is an unbalanced non-gf hand, with 2N being balanced non-forcing (if I played weak 1N,I'd suggest 2H be unbalanced less than gf, 2S be unbalanced gf, and 2N the strong 1N, and lump 'bigger than 1N' into either 2S or 2N or make it a 3N bid). You can use 2N as a gf, balanced or unbalanced, but then must start untangling shape at the 3-level. Generally speaking, especially when 3N remains in the picture, as it surely must even on unbalanced hands, the lower the partners begin bounding shape and strength the more effective the system will be.
Anyway, given that you've played your style for 20 years, I suspect you aren't about to change (altho I have made major changes in my methods many times over the years. Indeed, in two of the three serious and reasonably long-term partnerships I have played, we made significant changes every year. I find this very useful: it keeps me from getting stale, and allows us to learn from others).
'one of the great markers of the advance of human kindness is the howls you will hear from the Men of God' Johann Hari