Parashari and Jaimini are not two vocabularies for the same sentence. They are distinct interpretive grammars, each with its own logic of significance.
It is tempting, when a conclusion is desired, to draw a lordship from one system and an Arudha from the other and present the result as confirmation. This is not synthesis. It is convenience.
Where two systems are read independently and still point the same way, the convergence carries weight. Where they are blended to reach a conclusion already chosen, it carries none.
The discipline is to study each on its own terms first — Grahas, Bhavas, strength, yogas, Vargas, Dasha, transit in the one; Chara Karakas, Atmakaraka, Arudha, Karakamsha, Rashi Drishti in the other — and only then to compare.