Some extremely strong hands are not suitable for the opening forcing two-bid. An example from a duplicate game resulted in some poor scores for players who opened with a suit-bid and better scores for players who opened with a no-trump bid. Perversely, those who bid a suit wound up in a no-trump contract, while those who bid no trump sometimes reached the better trump contract.
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Text read from the printed page and cleaned; old type leaves the occasional error.