Here is the version I built. It really works great.
Had a G5RV that worked equally poor on most bands. Did a live comparison with a guy in Germany.
Running 100W, the G5RV was S7 - the double bazooka (with no tuner) was S9+.
The ambient noise level was also about 1 s unit lower. I did not expect it to be this good.
Got an idea to build one for 17M and use it as the driven element for a 2 or 3 element yagi. Its nice not to need a tuner for the entire 40M band.
http://www.k3dav.com/buildadoublebazookaant.htmRead the referenced QST article - despite the authors debate with the design the end result is that its working great and its definitely more broadband that a traditional dipole - and I don't need to use any tuners! Over the years I've built many antennas that worked great. If my decisions were based on modeling the antenna, I would have probably not built half of them. If it works, and you are happy than it's the best antenna for you (until it comes down in a storm) in which case it was not large enough!