[Antennas] Diminishing Returns

[David C. Hallam]

I realize you can't have too many radials for a vertical antenna, but 
where do you reach the point of diminishing returns.  Out of necessity 
my Butternut HF6V vertical is set on a narrow strip of land and I can't 
fan the radials out in a 360 degree pattern.  I can get about two sets 
of radials for each band fanned out at about 180 degrees, but beyond 
that the spacing between more radials will become rather close.  Would 
more radials placed close together be beneficial or do I have about the 
best I can expect?

I have no previous experience with verticals.

David
KC2JD/4