Actually tried to catch a thresher for several months last season. Eluded me all year long. 3 solid days of fishing for YT in LJ for no YT, we did manage to pull this guy up. I got it on the yo-yo iron on the way down. It was the glow chrome with glow back. It was a perfect lip hook, which made for a good fight. I estimate it to be about 80lbs.