Ra/Ke lord's sign vs auspiciously placed lords
Do we also analyze Rahu's and Ketu's lords to see if they are auspiciously placed in a varga (according to Jaimini principles) - aspect of Ju, Me, Ld ?
Will only the dignity of the lord of Rahu and Ketu help in healing the Ra and Ke, or will an auspiciously placed lord also make a difference ?
Am not sure this answers your question but, am of the opinion that a full/holistic understanding of someone's chart is necessary to better understand how Rahu/Ketu work for that person. Mostly, what I've been focusing on are the person's ascendant, foundational Nabhasa yogas (especially Akriti yogas), Yoga of characters and ShadBala/Lajjitaadi Avasthas (with a special focus on the dispositors of Rahu and Ketu). While I have not perfected any technique, I've noticed a general theme tends to emerge and corresponding to Rahu/Ketu axis.
I consider the vargas to be a magnifying glass into one area of life, always keeping in mind they don't replace / overrule the D1 but add subtlety to the main chart's analysis. For Rahu/Ketu, Ernst had mentioned D12 and D60 as being the most important ones to look at as it relates to parents/ancestry and overall effect (as in the "ultimate magnifier") which can also be tricky due to being so time sensitive.