Yes, 4 different videos on string wrapping and threading. All of those have you leave the line unclamped once it goes through the eye let. I tried running it again with the line anchored down twice on the spool to prevent it from unwrapping or over-wrapping. Maybe I could get 10-15 min use out of it? It still managed to cut the outer 6" right off the bat. So I ran it for 10 min with a 2-1/2" line getting what I could. The line finally sheared off to 1" and that was it. Checked the spool and both of those anchor points had come undone. The line again over-wrapped itself.
Tried one more time completely re-wrapping the spool from the extreme end. Will try it again next week end. I don't think this unit is supposed to feed out. But, it would be nice if 3/4 of the line didn't break right off the first time you ran into a wall, fence, or tree.