Re: The End of The Line; Discussions on Furlled & Knotted Leaders.
I bought an Orvis kit about 8 years ago, and it contained .021, .019, .017, etc spools. It sounds like the Umpqua kit has the .020, .018, etc line. In any case, I don't think the stiff butt will hurt casting, but might effect the way the leader lays out on the water. Some people do not want a straight leader for dry flies, and you can look at Gary/Jason Borger's recipes, along with Harvey and Humphrey's. The Borger 12' dry fly leader has very few sections, and is designed to land in an S shape. The good news is that you can buy spools of butt material cheap, and also get soft and hard butt material to further refine your leaders.