i'm running 42' total length with a 10' taper. This is on a 9:1 setup, traveler line is separate. I didn't want a longer taper because I wanted the cover to be on the line where it runs through the ratchet (more holding power). These lengths seem about right, but I haven't been out when it is nuking so I may be wishing to be have another 5' or so to ease. I think Sailmax sells 'em premade at the length you have but I think this includes traveler line. also do a search, i think this has been discussed a number of times before.