A method of producing a single winner from a Mitchell event by arrow switching the compass points of the pairs (on certain rounds).
On such rounds, the East-West pairs (and the boards) move normally, but they then play the North-South cards and vice versa. Generally, the final one or two rounds are arrow switched in a scrambled movement.
Avid collectors of master points like a Scrambled Mitchell because the master points on offer are higher than in a simple Mitchell.