Putting an aggressive, fast-loading line on your fiberglass or bamboo fly rod is like dropping a turbo in an old pickup truck--it might work, but it kind of defeats the point of the pickup. Rio designed its Specialty Series LightLine Fly Line to match the classic action of feel of all the fiberglass, bamboo, and slow action graphite rods that are becoming increasingly popular these days. Its short front taper loads quickly, making it ideal for small creeks where casting space is limited, while the MaxFloat technology keeps the line up on the surface where it can be easily mended to get the perfect drift and presentation that will convince the trout to eat your fly.