Paul Cripps of Soton Uni did a similar study of all the Avebury views. The PhD used to be on the net but seems to have disappeared. The paper is this...

Cripps, P.
Pathways through the Avebury Landscape - A study of dynamic spatial relationships in the Later Neolithic Avebury landscape
The landscape around Avebury bristles with prehistoric archaeology, and this paper presents an approach used in an attempt to enhance the understanding of the experiential nature of this landscape in terms of the changing patterns of visibility afforded a moving subject. This approach involved the fusion of the analytical viewshed capabilities of a Geographic Information System with more subjective visualisations facilitated by three-dimensional modelling in order to study not only static spatial relationships inherent in the landscape but dynamic spatial relationships between an active observer and their environment.

As I recall, that also was a bit inconclusive, and anyway concentrated more on the GIS and Computer methods involved. I suspect that some of you lot with more alignment-trained eyes would get more out of it than he did.