I've gone through 4 Rio lines, and have Rio LT on my 3wt. right now. I usually go through a line a year. Mainly because of hard use and not treating it after use. I just picked up some Airflo ridge line for my 5wt. that im going to try out this weekend. When you start getting into specialty lines like Rio Clouser, Rio Smallmouth the higher priced line is by far the best choice. The only Cortland line that I would buy is the Lazerline, made to last a long time. In the end its your rod and reel and your money. You may want to check you the Rio mainstream.