Precessional astronomy is the mechanism that dictates the accurate position of the Cross and the Circle of our SR scopes. The cornerstone of Fagan's techniques was the precise motion of the Cross-with our scopes. Fagan never wrote a definitive book pertaining to his brilliant astrological rotational techniques. In his time, he was banished by mainstream astrology because he used the Sidereal Zodiac and was labeled an event orientated astrologer verses a humanistic psychological astrologer. Sidereal astrology takes note of actual stellar positions, Tropical astrology does not.
Humanistic astrology relies heavily on the signs of the zodiac.
As far as I am concerned, both of the above types of astrology have merit. It just depends on if you are a predictive astrologer or a psychological astrologer. The point I am trying to make is that A PSR is a profound astrological first principle regardless of your philosophy of astrology. Mrs. Fagan stated with considerable vehemence how badly Cyril was treated by other astrologers who reacted with petty jealousy to Fagan's work, and this is usually the case when anyone's work infringes on an established set of beliefs. I personally believe that Fagan rediscovered astrological universal principles that became a cornerstone of knowledge with the ancient Egyptians.