Friction is a problem with reefing system, flattening reefs and cunninghams where a line runs through a cringle in the sail. There is a product called Quick Reef which you install over your existing cringle which reduces friction. This piece of gear is essentially a cringle with a small sheave attached within it. Although it's a bit pricy, they can be removed and installed on your next new sail when the time comes. Here's a link to the product. I think there is another company marketing this item under a different name but I can't recall the name at the moment.
http://www.goiot.com/pdf/p48a.pdf Ted Drossos C&C 29-2 H2OT
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