IME, adding the monsterRay to the RayII has boosted the color depth in new growth. Plants which i have purchased red have also maintained their colors. I've managed to do this in my 20g high surprisingly and started applying this same light combination in a 40g breeder. The tank is coming into its own with ferts and co2. You'll see a notable improvement with a MonsterRay supplementing the color spectrums over a planted tank.
"I am Groot", the faithful protector