I don't think internal outhauls are specific to Catalina so I posted this here instead of the C30 forum. According to my C30 manual the internal outhaul has a wire lead from the clew to a sheave leading it into the boom to a block. From the block double braid line is run to give a 3-1 purchase. Pic below. Catalina Direct offers a 10-1 purchase setup that adds another wire lead after the first one, then more blocks wove with double braid line. Pic below. My question is this: Does the wire line have advantages in this type of setup or can I plan to use all double braid line?