I'm currently running some sort of generic orange trimmer line from the big box store in my Stihl FS130R and it just doesn't hold up. I'm looking for something that will last in some tall weeds with briars that is also littered with sticks since this is in the woods. I've got blades and they do serve their purpose, but they just cut and lay down the plants where the string shreds much better.
What super heavy duty trimmer line are you running?
Here are some of my string alternatives that I use: