I was kind of amazed reading some posts where "softness" of line was mentioned in the context that it was. For optimum distance casting the more supple (soft) the line is, the farther it will cast and that is a fact. For all of my fellow fish heads here that don't think this is true, swap out your stiff line for a more supple one, same ABS etc, and then cast the same lure you were using with the stiff line, you will see a difference in distance. Using metered line lets you determine casting distance accurately rather than depending on the eyeball guestimate.