Lostgallifreyan wrote in
:

...several people, one of which (the guy who wrote the description
of the antenna and balanced line I mentioned) is part of a group of hams
who is turned to for advice by the others.

To save time:
"http://www.kongsfjord.no/dl/Antennas/The%20Best%20Small%20Antennas%20For%20M
W,%20LW,%20And%20SW%20rev%202.pdf

The start page for that link is here;
http://www.kongsfjord.no/dl/dl.htm"

(Copied from a post by 'amdx' earlier in this thread). The line IS balanced,
as it carries only its own internal current, driven by an isolated coupling
with the antenna circuit. Anyway, if he's wrong, there's not much point in
taking it up with me, for obvious reasons. He wrote that. I didn't.