Posted 2020-November-10, 17:08
If you play DONT, this is only not an automatic 2♣ overcall because you might decide to overcall 2♥ instead.
But DONT is designed specifically to "get in often and get out safely", and you might end up playing a 5=3 club fit with a 4=4 major fit available (or a 4=3 heart fit with a 5=4 club fit available, if you decide to show both majors instead).
As pescetom said, Woolsey/Multi-Landy doubles (strong) NTs to show "a 4-card major and a longer minor". When I play that, I would either do that or bid 2♣ "both majors" as I felt was right.
But as I said upthread, if partner has an issue with Landy on this hand, don't do it. If partner's okay with this as an "obvious deviation", then you're good, If partner thinks this kind of thing is systemic, then you should change your explanation "we assume 5-4, but we reserve the right to bid on 4=4(14) or 4=4(05)." If the opponents wouldn't Landy on this hand, that's their choice, but they don't get to make you play by their agreements. Any "funny Landy?" comments get responded to by "I have both majors." Any further comment gets "If you have an issue, call the director" and otherwise ignored.
I agree with pescetom's conclusion as well - play what you play; don't go looking for conventions to fix issues until you are completely comfortable with the basics you are playing. My gadgety partner and I haven't changed anything in over 3 years - because we still haven't nailed down the last (big!) change yet.
When I go to sea, don't fear for me, Fear For The Storm -- Birdie and the Swansong (tSCoSI)
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Agree with Mycroft. You shouldn't bid 2♣ if partner would disapprove; and if you sometimes bid 2♣ with 4-4 in the majors, then you should change your explanation and system-card.
If partner would bid a major with 4-cards but bid 2♦ when 2-2 or 3-3 or 2♠3♥, then it is better to hold ♦ than ♣ length because you can take a view and pass 2♦.