I pulled to 7♣, which got doubled in a rage on my right. My LHO was a very ethical player, though... he took inferences only from the auction and not from his partner's table action. So he read this as a Lightner double, and led dummy's suit (spades). I tucked in the nine which brought down the queen. A 3-2 club split later, I racked up 1630 for 7♣X nonvulnerable!
East here made two huge mistakes. First, he was on lead against 6NT with a solid six-card suit. This should be a situation that you dream about... but he got very greedy. He wanted to turn +250 into +1100. Then he regretted his decision so much that he forgot what a double of a slam means when you're not on lead.
Let's look at the IMP math here. His teammates were in 4♠ just making for +420. Adding 250 to that gets us 670, or win 12 IMPs. Adding 1100 would make it 1520, or 17 IMPs. So he was trying to gain 5 IMPs, at his great risk. The actual +1630 gave us 15 IMPs - so he lost 27 due to the double. Even if his partner had led his suit, we would have gone down 300 in 7♣X... for the same 12 IMPs! Not a very good trade...
Later in the session, this hand came up:
I decided not to defend with my 8-5 hand. As it turns out, I could have doubled 6♠ for a fine score - +1400. But that would have lost an IMP! At the other table, my friend Ranald was in 6H just in for 1430. I decided that I didn't need much to make 7♢ a good contract, so I just up and bid it. My LHO doubled and led the ace of clubs. I ruffed in hand, and could see that a successful heart finesse would bring it home. The trouble with finesses, though, is that they sometimes lose. So I looked for a better way to go about it.
The diamond spots looked nice - with a good trump break I'd have three entries in the diamond suit. So I led the king of diamonds to the ace (showing off a bit), and they broke 1-1. Nice! I ruffed a club, went back to the board with the seven of diamonds, ruffed another club, and went to the board with the eight of diamonds. These cards were left:
Finesses only work 50% of the time. They should be your last resort.