Re: Need advice on new fly line.
You can find some very adequate fly lines with WF or DT configurations for $50 or less. They won't be as fancy and have the hype of the more expensive lines, but they'll work. You can also find some of the more expensive lines with very little use on them for sale on various boards and auction sites. As to your questions, I'd get a WF7 and DT for your lighter rod.