The Monic flylines I have are all clear WF-F & the Airflo flylines are all clear WF-I. Only memory of coiling is when they have been on the reel for over a year & not stretched out in the sun & heat for an extended period of time. Next best cure: is that they were overheated in hot water while getting cleaned in a bathtub, whereas the bubblegum texture. Stretch it out & dress it up with line refurbishing liquid of choice & buff. Must have one big commercial weed-wacker !