My original question was very short, so let me elaborate a bit.

1. Practically everyone I know uses some sort of WF lines (or shooting
heads) in heavier gear.

2. The two rod manufacturers that I've checked (Sage, Winston)
recommend WF lines in heavier gear, either explicitly or
implicitly.

3. The DT versions of Scientific Anglers Mastery lines (GPS, XPS) are
not even available in weights over 6. They do have some 7 and 8
weight cheaper DT lines.

Personally I'm a DT fan, and I have a DT line even in my 10wt. On the
other hand, I can't cast very well with it... :-)

--
Jarmo Hurri

Spam countermeasures included. Drop your brain when replying, or just
use .