Fish wets a lot when dries don't work, I don't alway's swing them. I often fish them just under the surface with an upstream cast as I was taught back in the 60's, lots of ways to fish wets.
About 5 yrs ago I picked up on clearance a DT Hardy Marksman 4wt line that I fish and abuse a lot. I finally reversed it on the reel last yr and don't expect I'll need to replace the line until 2020. Quality line, I wouldn't hesitant to buy another Hardy line.