[Rick Lyons]

Someone said the cunningham moves the draft aft when applied….The cunningham when applied moves the draft forward not aft. The further the draft moves aft of the original design the slower and worse condition you will be in in high overpowering winds. Also when applied relatively hard in overpowering winds it helps open the leech up or twist it open high in the sail making the sail more forgiving. 

[Rick Lyons]

Remember it’s important to make sure when you reef the mainsail to put very tight outhaul tension in the reef, otherwise you will gain nothing in the reef with too much drag and the balance will be off with no benifit of the smaller sail.

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