Hum.. was hoping more people would reply

Anyway thanks to those who replied, and here are the hands:
1.
West East
1NT 2
♦
2
♥ 3NT
West decided stick to 3NT despite the 4-card fit! Club lead beats it, but I think a diamond is much more sensible in this auction and at matchpoints. 11 tricks for 660 was an obvious top for E/W, as nobody managed more than 650 playing hearts. Pard vowed not to fail to open 3
♣ next time, lol.
2.
East S W N
1
♠ p p X
3
♠ p p ??
At table North doubled again. South for some reason decided to pass... declarer blew a trick, so he could "only" manage 9 tricks. Double is aggressive, but should perhaps be made at matchpoints.
3.
West N E S
2
♠ p p X
p 4
♥ (all pass)
South huddled for a long time but managed to scrap up a balancing double! That left North very pleased. North could have bid 3
♥ the first place, but he reasoned South, marked with spade shortness, would balance if he had any sort of competitive hand.
4.
South W N E
p 1
♣ X 1
♦
p 1
♥ p 2
♥
2
♠ 4
♥ 4
♠ p
p X (all pass)
That went 4 down for -800. South's 2
♠ was underpar shape-wise and encouraged North to sacrifice in 4
♠, playing pard for a more normal hand, with 5 spades. I think 2
♠ was a bit futile. What was the point of bidding it, if not to suggest a save, to which South's hand was clearlt unfit for? Still, with a normal 3-2 spade break, the save would probably have gone for -500 for a clear top, so maybe the bidding wasn't too bad after all...
5.
East S W N
1
♠ 2
♦ 2
♠ X
3
♠ 4
♥ 4
♠ 5
♥
X (all pass)
North was unsure who could make what, so he took his chances in 5
♥. It could make if South had the right cards (
♥K,
♦AK), or it could go 1 down vs 4
♠. Not to be.. though 4
♠ does make (requires good timing, though), the defense got their diamond ruff for -2. At imps North would have bid 5
♦, going for the obvious -200. Perhaps North should have doubled 4
♠, as the opponents were likely to misplay it and go down, LOL.
6.
West N E S
1
♥ p 2
♥ X
p 2
♠ 3
♥ 4
♠
East leads
♥Q. After ruffing and leading the
♣Q to K and ace and a spade back to the K, North reasoned correctly to take his ace and give away three trump tricks. However, he still needed to establish diamonds. Now he could either go back to hand with the club 9 to finesse the
♦Q (50%) or to ruff a diamond, playing for diamonds 3-3 or doubleton queen (52,5%). He took the latter line and went down when the queen failed to drop in three rounds

oops. Perhaps there's a better play?