Does anyone here have experience working with Sedna from an evolutionary perspective? Any recommendations for best resources to learn more?

I know this has been addressed before because the retrograde motion is confusing. I thought I understood it, but I’ve been reading the EA Glossary and on page 2 there seems to be contradictory directions given. I am going to reference my own natal chart, because I have three conjunctions to the nodes and it might be useful to others to clarify how to determine the phase of a planet to the lunar nodes. I think that’s alright, because I’m not asking for an interpretation, only if you would please help me to understand how to determine the phase correctly. 1. North node at 3 degrees 34 minutes Scorpio, Uranus at 6 degrees 24 minutes Scorpio. Uranus is slower moving, so going clockwise to the node, this would be a new phase conjunction? 2. North node at 3 degrees 34 minutes Scorpio, Mars at 3 degrees nine minutes Scorpio. The node moves slower, so going clockwise to Mars, would make this also a new phase conjunction? (This doesn't seem right.) 3. South node at 3 degrees 34 minutes Taurus, Chiron retrograde at 0 degrees 1 minute Taurus. Chiron is slower moving, so looking clockwise to the node, this is a balsamic conjunction? Does Chiron being retrograde affect how to determine the phase? If I have this wrong, please let me know!

My understanding is that EA uses triune archetypes, meaning that house, sign, and ruling planet each reflect a different facet of one archetype. My question: would planets in Scorpio or the 8th house, for example, be interpreted similarly as if they were in aspect to Pluto?