I have put off this entry for several years now because fly line innovation is a topic that changes from season to season, with fly lines and their ever-changing tapers, line logic, and often mind-numbing combinations. The substrates, additives, applications, and newer fly rods are now all key factors in the development of the most modern fly lines. It's a topic that sometimes outdates itself in days, not years. Fly lines back when I started fly fishing in the 80s consisted of a limited number of taper configurations. Most of the Cortland line that I used, the Classic 444 lines, were great lines that did precisely what they were designed to do. There were Double Taper and Weight Forward lines for different-weight rods. Many of us were loading the Cortland 444 Peach colored lines through bamboo with excellent results. As a matter of fact, I primarily use the Peach 444 DT line, which has an 8-foot taper, to this day. I started using Terenzio DT silk lines from Italy in the late 90s. ...