Check your tension on the outer or upper shroud standing with arm straight out using your top two fingers only without moving your arm and hand. Then pull in the upper shroud just with the two fingers. If you can pull it inward more than an inch , you can tighten up the shrouds using 1/2 turns. So if the forestay with furler is or appears flopping around, tighten all lowers and uppers shrouds equally using half turns but no more than a total of three turns. Get back and tell us more what you have in way of tension. I never used a loos guage and was pretty much spot on.