When we fish the finger lakes in New York for lake trout we have FLEA line on all reels. The line is triangle shape not round, so it cuts the fleas off as you troll. You still have a few but sure makes easier reeling and not having a clump of debris at your rod tip. It's hard to find now because the company (Cortland) is now out of business. I found a complete spool of it on e-bay a year ago. Good Luck.