blackwood is for dicks
I like control-bidding first and second round of control (after the partnership has agreed to game). Since, two of four things needed for a small slam are:
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[*:b9fb60308f]33+ points (12 tricks)
[*:b9fb60308f]not 2 quick losers
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I'll remember the other two... Anyway, the rap on Blackwood is that it places the decision to go to slam in one hand. Control bidding is a little more cooperative and it tells you where those A, K, voids and singletons are.