I noticed this too after my first use of the Power Head String line trimmer using the trimmer line that came with the trimmer. As Sarah mentioned easy to solve but curious if the included line is less susceptible to breaking but more prone to fraying than comparable 0.095 line. With my old has trimmer I used both Echo Cross Fire and Rhino Tuff Twist Heavy Duty 0.095 line and never observed any fraying on the ends. I will admit I seemed to have less line breakage with the Ego trimmer and included line. Curious others experience with the Ego brand line vs other twist line (it is substantial more expensive per foot than the other 0.095 brands at Home Depot.
The original line frayed when I was using it also. It also would not cut the thicker stuff. Cyclone was recommended to me but I picked up Echo Crossfire by mistake. It never frays and hasn't broken yet. It does bend but doesn't seem to affect performance. I bump it sometimes just out off habit.
Bump-feeding the trimmer head to feed new line will take care of the frayed line short-term. That said, I do prefer other brands of replacement line over Ego's, which I find to be brittle and prone to fraying.
I've used Echo Cross Fire and Husqvarna Titanium Force with great success. Just make sure it's the right size (0.095).
