I often get asked, "Larry, what should we do when they use a Convention (such as CAPPELLETTI, or DONT against our Strong Notrump?) There is no fast answer. To cope with interference, you need to do a little studying and memorizing. Otherwise, be prepared for some accidents. You and your partner have to come to some agreements.
It is impractical (unless you are a world-class bridge pro) to try to memorize different schemes versus different methods. To play System-A
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