These movements are really a type of a Howell, with the base skeleton superimposed upon itself, so that all the tables play the same boards on each round.
The round robin events (which quite often are scored as Butler scoring) involve rounds of fairly extensive length. With, for example, two boards per table in a 7-table movement, there are 14 boards in play and the boards are passed around the tables until all the boards have been played. The players then move to the position for the next round and a new set of boards is introduced.
For a Barometer pairs event there are usually duplicated boards involved so that the complete round robin can be played in one or two sessions. In this event the scoring is done by scorers in the round following the play, and the scores are posted immediately they are known.
The standard balanced base skeleton is all that is needed for this movement, with the switching of one table necessary for thoroughness in the odd table movement.
