Trimmer Lines Breaking Off Inside Speed Feed

[Likesaws]

I've had this problem and try to only load 12ft as a time. The extra "breathing room" seemed to help alot.

Same for me. I don’t wind as tight, and I switched to Echo speed feed type head.
A knock off one from flea bay works good for me.

 

[Al Smith]

Today I worked on a patch of golden rod which is a highly invasive plus gigantic weed .These things can get over eight feet tall and as thick as your big toe .I used a micro chain saw to wittle them down to around one foot and a Stihl weed wacker with nylon blades to take them to the ground .A standard line trimmer head could not do that but a blade head can .