I love the Rio Gold fly line taper but Rio lines are known for not being real durable, and the ones I have used have supported the not as durable reputation. Now that said Rio has introduced a new coating on their line recently that is suppose to be more durable and slicker. I have purchase one of these for my 4wt and will see how it goes.
I prefer Scientific Angler lines for their durability and the trout taper in the Amplitude Smooth line is perfect for all but the fastest of rods, with the Infinity taper best for super fast rods or for uses other than dry fly fishing, i.e. streamer nymphing etc. I do not like the textured Amplitude line but you may. I don't like the sound it makes going through the guides or that the rough finish picks up algae.
