I care little for what you think of me but I like a nice soft feel for the mainsheet. I sail Formula 18...maximum purchase allowed is 10:1. I would make that doubled if I could. I sheet the main the whole time as Eileen does not want to. The line I hold is very thick, I admit, that is why I like to taper it for the blocks. For that I use 1/4 Vectran, I do not think 3/16 makes much difference. The problem is when going to splice it you need to make sure you can hide the thicker line in the thinner line so there has to be enough room for it.

There are other lines designed for tapering. You peel off the outer layer and you have a tapered line. They look cool in the pictures. I do not use them so cannot give you any information other than to say they are available.

Later,
Dan