The Yale light stuff runs real well through blocks and works well for main and jib sheets. It is very slick when it is brand new. They put chemicals in it to spin it and that makes it slick. After a few sails it works really well. Or you can run it through a washing machine with a little woolight and it comes out nice.
If you call Layline they will send you a few samples of their line if you are unsure. I had them cut about 6 samples one time to help me decide. I still use the samples when I'm choosing new line. Just make sure you label them.
Mike Hill
H20 #791