My concern is not about the small amount of weight you save, but the amount of wind drag you add by going from skinny wires to fatter line, and then add the risk of creep, and the risk of failure if something sharp rubs up against it. You would have to be constantly checking them for wear and nicks, etc. I would think.

I like the lower maintenance of wire because I leave my mast up most of the time. If I were keeping the boat on a trailor with the mast down and all stays coiled neatly in the box, maybe I wouldn't worry about using line instead of wire. Of course I could stop drinking beer and I would lose more weight than by switching to line too. <img src="http://www.catsailor.com/forums/images/graemlins/blush.gif" alt="" />