gwnn, on 2011-November-17, 10:54, said:
Long minor suits is one case when I'm OK with passing with a super distributional hand (to bid UNT on some level, 4 or even 5). I am not sure what 3♦ then 5♣ or 2♦ then 6♣ or something like this shows. Maybe 2♦ then 5♣ really does show 7-6 (or 6-6?), but at the moment I don't understand why.
You can always preempt diamonds and rebid 4N to show more disparate suit lengths.

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