I am using Big Jon line at this time and I picked some last year but I have not used it to give it a recommendation. Maybe I am just
procrastinating because it's that is the flo. orange which I dislike. Big Jon has served me well no breakage, twisting nothing!!
Current line has all little fizzing in the first 6 to eight inches from its snap and its starting season 4. Weed Whacker line is definitely out of the question.

Gene