I had a partnership where we played that 1M-2M-3M was either asking for help in trumps with an invitational hand or showing strong trumps in a weak hand. If responder had strong trumps he bid game.
I still haven't seen a discussion of bidding games in Swiss teams. Those 36% odds for bidding vulnerable games are in the "long run". Even those of us who aren't Keynesians should realize that you need better odds than that.
(Keynes made the famous remark "In the long ...
They never bid, and our auction was 1♠-4♣(splinter)-4NT-5♠ (I thought I should show the Q in case he needed to know about the extra extra extra extra trump)-5NT(specific kings)-6S.Partner ran all his trumps (excuse me, all my trumps), but lost the ...
In real life, I opened Flannery with the North hand. I don't care for Flannery with 6-4, but my partner wanted to play it. East doubled, but that showed ♦, not ♥ takeout, and partner just bid 4♥.