It was not the line slipping, it was uncleating itself, I assume under load , but not sure since it was on the mast and got alot of slamming around with gybes and tacks and such. I will have to look at it and see if it is alloy. What is the replacement made of? It was bought at West Marine.

David Mosley
www.seacats.org

The men were amazed, and said, "What kind of a man is this, that even the winds and the sea obey Him?" Matthew 8:27