Even with the 6:1 in good winds when I'm on the wire it can be tough to hold the sheet uncleated; I like to wrap it around my hand a few times and then hook my thumb into the harness. Then I can use the hand-squeezing motion to subtly adjust the sheet, straighten my hand a little and the sheet will uncoil off my fingertips to run out, or pop my thumb out if I need more play (in or out) than just flexing my hand a little will provide.