If you're racing then you need to make sure you only pump in one direction (called sculling - in this case ) or you'll fall foul of rule 42: http://www.sailing

If you're racing then you need to make sure you only pump in one direction (called sculling - in this case ) or you'll fall foul of rule 42: http://www.sailing.org/tools/documents/42Interpretationsforbooklet-[15296].pdf http://www.sailing.org/tools/documents/42Interpretationsforb...