In this type of event the tables are divided into multiple sections of the same size. This means that all the pairs in one section play only pairs in that section. If the sections are Mitchell movements, then the pairs only meet half the pairs in the section. If the sections are Howell movements, then they usually meet all the pairs in the section. If the boards have been pre duplicated, it is possible to score the event over the entire field, but it would still be preferable to score the sections independently, as this would be much faster with a scorer being assigned to each section.
Computerised scoring would of course simplify scoring across the field.
The pre duplication of the boards would therefore appear to be unnecessary, except where the scoring is to be done over the entire field. However, the playing of the same boards over the whole field is appreciated as the players can discuss the hands after play. Having the players duplicate the boards can incorporate this attractive feature easily enough. This can be done by two methods.