I don't re-spool my Flourocarbon very often at all. When I do, I Backfill the spool with 20-30lb mono so to not use as much Flourocarbon to fill the spool. I will say if you store your reels in a non-climate controlled environment it will hurt your line. My garage is not climate controlled and can get pretty warm in the summer when the door is closed. I take all my reels off my rods and keep them in the house in between trips. Keeps the line cooler and does not give as much memory to the line.