Fed up with keeping all the relevant numbers and signs in my head, I've made myself a ready reckoner of the Precessional Year showing the location of the Sun at the equinoxes and solstices in each Age.
For convenience, it's based on a uniform Age length of 2160 years with 12 Ages, giving 25920 years in a Precessional Year.
Click the image for a full size version in a new window.