The auction is usually easier when you set the trump suit early.
This hand is a good example.
Scoring: Matchpoints (Pairs)
Hand #25
Dlr
E
Vul
None
86
KJ5
A97
AK986
104
Q10862
K42
J75
752
9743
QJ1083
4
AKQJ93
A
65
Q1032
West
North
East
South
Pass
1
Pass
2*
Pass
3
Pass
3
Pass
3
Pass
3NT
Pass
4
Pass
4
Pass
7NT
Pass
Pass
Pass
*Game forcing
BIDDING: At first South merely liked his hand but when his
partner bid clubs, he fell in love with it. South raised and
after two cue bids, North showed his semi balanced shape by bidding
3NT. This pair uses Minorwood where four of the agreed minor asks
for keycards (4 aces + trump king). North showed three keycards
and South bid the grand slam in notrump.
PLAY: West led a heart
and declarer quickly claimed thirteen tricks. Many players in the
South chair ignored clubs electing instead to show their good spade
suit. North raised to the spade game and, worried about diamonds,
several of the South players passed. It's true South should move
past the spade game, but his failure to support clubs earlier created
the problem. As this hand shows, raising a minor does not mean
you cannot play in another strain.