1♦ - 1♠
2♣ - 2N
3♠ - 4♦
4♠ - 5♣
6♦ - Pass
And I bought:
We were the only ones to reach slam. 3N makes the expected 11 tricks. 4♠ makes on the nose, if you play it right; if you try for 11, I think you lose control (QTxx behind the AKx) with a club lead.
Over 3♦; pard is endplayed into 3♦ I suppose. Same with 3♠, but woe to the Serious 3N players out there on this hand
I love my pard's 4♦ call. He knows I'm short in hearts, so 5♦ rates to be better than 3N.

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