In my area there are alot of borders for flowerbeds and yard borders done with natural limestone. The unconformity of the line eats up my trimmer line. I was wondering if anyone had any suggestions or what they did. Many of my accounts have this and it requires me to replace my trimming line often. It's not the money required to buy new string that bothers me but just the time and pain in the @ss it is to restring the damn thing. ...it chews up the string because many have the grass growing right up to the rocks (just FYI) and the rocks are jagged and yea you get the idea.