Cortland OmniVerse (now called Long Belly)SA Trout, Rio Technical Trout in true wt lines. Cortland Modern Trout and Rio Gold in 1/2 wt heavy lines. Gold may only be .3 heavy in some versions. Distance is achieved with these lines due to the long rear taper which stabilizes your loop (no hinging) which allows you to hold more line on your back cast therefore allowing more distance. On the right water I can fish dries as small as #20 at 70ft especially with a CDC wing as this material is remarkable visible at distance. The newer Rio coatings are more durable and should last longer, I too had Rio replace a line that was defective. Many others have not experienced this issue.