Bob,
If you would send me your precise antenna mounting coordinates via private message (or via the "Contact Us" page on our website), I will be happy to investigate your situation with precision that's not available from the plot alone.
I will tell you that if you want reception from a broader swath of azimuths, moving to a standard 8-bay is exactly the incorrect thing to do. A 4-bay is usually the better choice as it has approximately twice the effective beamwidth (pick up window) as a standard 8-bay and, if the angles work out correctly, avoids the extra expense and potential complications that an adjustable 8-bay can introduce.
