Passing close by the stone circle and between it and the whispering knights is a very powerful flow of consciousness known as the Belinus line.
I agree it's not a line. It's a trackway. Nowadays tarmaced over and called Cross Hands Lane.
The Rollrights was the chosen site for an experiment run by Paul Devereux who was head honcho at the Ley Hunter. Such a focus on one place would be almost bound to come up with ley lines, magnetism, dragon forces, whatever they're looking for. Wouldn't it?
At the rollrights are 89 leylines, each line is composed of nine parallel lines=801.
Then it gets complicated, as there are multiples of parallel lines fitted inside each of the 89, the result is thousands of individual lines with each line carrying consciousness that constantly varies both in intensity and in directions.
Travelling through all of this is a massive flow of consciousness of this planet, known as the belinus line.
There is between the stones and the whispering knights a cursus, it is constructed to locally divert the belinus line.
The local manipulation of such massive flows of consciousness is IMHO the design criteria of the environs of the rollrights, and it is to do with a cross feature in the geometry there that would have involved four long barrows, the knights been the most obvious remains.
It is all too complicated to draw out, but simple ( for Me) to detect, and all I can do is report as I detect there.