trimmer blades durability against wear?
I purchased my second string trimmer recently, moving up to the larger machine with electric start. I find that I waste a good portion of the cord and end up throwing away money. I want to know what the life of the blades are compared to the cords. I cut against different surfaces, chain fence, brick edging etc. How will the blades standup to hitting such surfaces. If not suitable, is there a ball that cords can be attached to that is wider in diameter than the one supplied?