^^^I liked him better as a "Lord of the Sith"^^^
The best thing you can do is to mimic the spectral balance of the sun....Adding "more red" will not do what you think....more blues as HPS is lacking enough, would make a difference that may surprise you.
The reason growers went to HPS was the increase in actual intensity of the photon's delivered to the plant....Not any boost in red spectral banding. Although it was a benefit....the down side is the "less" blue spectral banding..