I have recently purchased a stihl 20-2 super cut head for my FS-90 R. It came loaded with line and it took me hours to use up the original line. After I finally did use it up and reload, I now only get a fraction of the time before I've used up my newly wound line. I must be doing something wrong but have been unable to get any answers from the Stihl site. Does anybody have any experience with this. The dealer told me he had heard this and thought that Stihl had someway to load a exceptional amount of line on the head. I don't buy that. I have loaded the proper amount of line and tried to follow the pictures that stihl gives with the head.