Is yin or yang harmony better in the early game?

Hello! I’ve started a Miao Ying campaign but am kind of clueless as to the best way to wield regional harmony in the early game.

I found Cathayan growth to be a bit weak, so I felt like investing in Yin buildings since they give more growth buffs but this negatively impacts my revenue and research rate, as well as the cost to raise units. I’m not sure if privileging growth is actually the right play or if I should aim for harmony (or yang balance)?

What is ideal to get Cathay going in your experience?