The EFRW QRP antenna long wire with 4:1 Balun that I received from Tuftein was tested this past weekend at Chillycon.
It was used for SSB and CW on several bands, both for hunting stations as well as calling CQ. No DX was worked with it, but stations in Texas and Georgia were.
The first thing I noticed was that the "Q" of the antenna was very narrow, making it necessary to retune the antenna every few kc. I don't have to do that with my Rybakov, so I'm at a bit of a loss why I have to do it with this EFRW.
The other thing I find very strange about this antenna is the fact it comes with a built in 4:1 unun. EFRW's normally use a 9:1 unun. So from that point of view it's a wee bit strange.
It's very well built, no doubt about that. But it certainly didn't perform for me as I was expecting it to. I believe this antenna should be redesigned and a 9:1 unun used instead of the 4:1, which I think would make it much better.
This antenna will be put away, and I will stick to using my Rybakov in the future.

