It sounds confusing, but at the same time, seem makes sense.
If you have a system that works for you, that would be the best way.
I don't, hence trying to read and learn from the traditional and modern knowledge, trying conflate, find out and choose which system works better for which problems, then one day maybe I could have my own working system.
For me, it began by theorizing why the Traditional rulerships were chosen in the first place, before Ptolemy. The Cardinal-signs were used to position the Tropical Zodiac, and there's a discernable positional relationship between Venus and Mars relative to the Earth that fits the "Equinoctial" (which I labeled "equivalent") Signs--equivalent and opposite; and, between the Moon and Saturn that fits the "Solstitial" (which I labeled as "farthest limited distance apart") Signs. That gave me the Cardinal rulerships I use:
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. Then I rated the Fixed and Mutable Signs, including their Elements, for a "coefficient of change". Taurus, Fixed-Earth, scored lowest, and Sagittarius, Mutable-Fire, the highest. The Ascendant (with Apollo for its archetype) is the fastest of the 12 rulers I use, and the Age Trident (Earth's Ages, so, Gaia the Earth goddess) is slowest. That gives the Ascendant rulership of Sagittarius, and the Age-Indicator rulership of Taurus. I matched the coefficient of change for the Signs to the rate of movement of the Sun and Planets (except for the Planets already ruling the Cardinals, which were already assigned). That gave Scorpio to Pluto, Pisces to Neptune, Aquarius to
, Virgo to Jupiter, Leo to the Sun, and Gemini to Mercury. I was surprised by the Jupiter/Virgo matchup, because the others were what I expected from the coefficients. That's when I realized the Athena/Minerva connection to the Sign Virgo. Quite different from how Virgo is usually depicted, but on solid footing regarding the Ancient-Greek religion.
Another interesting difference: This "coefficient of change" based on the Modalities and Elements of the Signs reveals Pisces to be less changeable than any of the Fixed and Mutables except for Taurus and Scorpio! Pisces APPEARS to give way to avoid conflict, but secretly holds to its position quite stubbornly.