Thanks to everyone who replied. I'll now weigh in with my (admittedly biased) two cents. On the first hand, I don't see how North can pass 3N. He knows that South has a stiff club (even if you rule out a void) and with no entry to those clubs, how can pass be right? I was South (if you haven't guessed that already) and pictured a hand like XXX KX QJX AQXXX and thought that my fat 14 and great spots would make 3N laydown opposite almost any hand resembling a 2/1 response (barring a club lead if partner has bad spots, which is exceedingly unlikely on this auction) whereas a 4H contract might have problems if hearts don't break (I certainly have no reason to suspect that hearts will take 2 more tricks than NT if partner has that hand). Simply put, 2H doesn't guarantee 3 card support and after showing a hand with 5 hearts, 4 diamonds, double spade stop and shortness in clubs, I expected partner to take it from there. On the second hand, I was again South. I don't dispute that I didn't have a textbook DONT bid at unfavorable, but we were playing an inexperienced partnership and I doubted that they had the tools to nail us even if it was right. Yeah, I would have preferred to be 5-4-3-1 and usually the principle of 'first mistake gets all the blame' is valid, but when the 'first mistake' produces a great result and the second mistake is so hugely antipercentage, I think you have to make an exception. For starters, my RHO might have taken the 4H bid as Texas and bid 4S if my partner had passed. Regardless, they wrongsided the contract and got too high because of my bid. The 4H bidder was a passed hand, after all. Partner's 5C bid is criminal. He has no fit for either of my suits and chose to bid 5/4 with a presumed 8 card fit into a nebulous auction where the opps might end up in the wrong suit or at worst, where he knows exactly what to lead. DONT is designed to interfere with the opponents' constructive NT auction. It performed beautifully on this hand. Then partner took a hugely antipercentage action and we went for 1400 (down 5, the diamonds were 4-2 offside (who would play the heart bidder for diamond length?) instead of taking our easy plus against 4H. Doubt I changed any minds with my analysis, but what the hey ... ;D