When I started fly-fishing in earnest, almost four decades ago, the sport was still in its infancy in many respects. For example, the choices in fly lines were very limited. If you wanted a sinking line or a shooting head, you had to make your own. My first real sinking line came courtesy of the late Harry Kime, who painted floating lines with a lead-based concoction he mixed up at home. The late Myron Gregory graced me with my first properly matched shooting head. Gregory, a casting champion from northern California, was instrumental in getting the tackle industry to change to a uniform numerical grain-weight designation for fly lines. Today these types of lines are as common as tippet material, and the selections available from leading manufacturers can easily bewilder even experienced fly-fishers.