I use the "Orvis WF-9F Bass Wonderline" for bass, salmon & steelheads...
It too has a spliced loop for the leader connection.
The line comes in sizes ranging from 6wt. to 10wt. and is chartreuse in color.
I use Wonderline on all three of my fly rods.
There is nothing like a lunker smallmouth on a 1wt. fly rod that has just taken a #8 Montana nymph.