In my research I found it very interesting that the operating weight is so high on some of the new composite ropes.
I think I am going to switch to 1/4" on my jib. I planned on going to 3/8" on the main. I don't know why more sailors don't use 1/4" jib lines.

That last disscussion looked like Yale / Spectra cordage talk. I have already had opinons on it. Anyone try Sampson WarpSpeed?