[sceptic]

Scoring: IMP

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West North East South

 -     -     2NT   Pass
 3♥    Pass  4♦    Dbl
 6♠    Pass  Pass  Pass
 

I am not sure what I should have done here, I stole the hand from my p. worked out ok, but thats not the point, can I have your comments on how I should bid this and specifically after pards 4 diamond bid pls

[toothbrush]

When south would not have doubled 4♦ I think I would have asked for aces before bidding 6♠.

With the double, you get extra space to bid more accurately: some play it like this:
pass = no control
rdbl = first round control
bid = second round control
I think that with this agreement, in this game I would bid 5♣, but I'm really interested in the other opinions.