The spinnaker sheet length is 72 ft (21.9m) with the added purchase and the diameter of the line is 5/16 in (8 mm). 72 feet seems to be on the long side and I have been tying the sheet so the working length is only around 55 ft (16.8 m) I have only sailed with the added purchase in light air and I don't know if I will need more length (more than 55 ft) in heavier wind. I don't want to cut it shorter until I find the right length. Hope this information helps.

Jennifer
Taipan 4.9/F16HP #262