2D!= multi and 2NT shows 22-24 HCP
3C=Niemyer, 3D= 4 card Major, 3H= Spades, 3S=spade fit
4C, 4D, 4H = 1st or 2nd control
Who should have bid more?
And more important: Maybe we should always go to 6S with 32 HCP and a fit, but what is your style for the conrol bids:
- Did South promise extras with his 4D control bid or does he always have to give controls? Also taking into account that North can give less serious slem interest by bidding 3NT iso 4C.
- Does 4H bid by North have a meaning. Does it ask South to continue if not minimal?
- Can South bid more then 4S or would you expect that that would always be done by the less defined hand? (On this hand it is difficult for South to know his partner has Club K or A)

Help

Pass-2D!
2H!-2NT
3C-3D
3H-3S
4C-4D
4H-4S