Gary, I don't really know. Shackles would be at least as good as the forged hooks, although my hooks do have the safety catch on them, they're not just plain hooks. <<Jim>> <<http://www.oldengine.org/members/jdunmyer>> <<jdunmyer@toltbbs.com>> <<lower SE Michigan, USA>> <<mailto:jdunmyer@toltbbs.com>>