I've come to like Yale light for the mainsheet. It runs through the blocks nice, but can be rough on hands if you don't have gloves (but who doesn't wear gloves...). One problem I have when the main sheet gets water-logged and heavy is that when I'm on the wire, it wants to fall down between my hand and the boat, eventually getting caught in a wave and paying out off the boat into the water. Non-water soaked Yale Light has been much easier for me to control this with. After a season or two it starts to soak water too, though. Also, when new, it's a little stiff, and though that seems a little weird it helps keep the tangles and rat's nests down. My jib sheet is flexible and water soaking and I hear lots of complaints from my crew - it will be Yale Light soon...