Tom I have used the Alpha Delta at field day and it is very good. Just run
a wire from the center to ground, if the model you have requires that. I
have also had the B&w, and it is a terrible antenna, on 80 meters. Most of
the power is absorbed rather than radiated. Who cares if you see a flat
SWR, you see one on a dummy load as well. How well does that radiate?