However, if clubs are 3-1 and the A is with righty, then a second spade will tap dummy into oblivion and the hand will crumble into dust. Your play to trick 1 will affect the outcome of the hand, and it must be based on what you believe the spade position is. In this case, it is most reasonable to believe that lefty holds both top spades for his double, so pitching a heart will prevent dummy from being tapped more than once. (If you believe that righty has the K, then ruffing trick one will accomplish the same goal.)