I'm by no means an expert on lighting, which is why I just stuck to their already tested program. I did not modify it. I don't find it too blue, but that is personal choice. I'd be afraid to give you any opinion on any mods you might want to do. Coral Labs set the relative intensity of the channels in the program with respect to each other based on experiments at their facility. I scale the program to 85% of the max values they set. I don't think that comes out to anywhere near 85% of the total power of the unit. Last I measured par it was around 300 mid tank unadjusted Apogee reading (not the new LED tuned sensor) I think I went from 50 to 85 over about a month. I also kept their standard ramp, and run from noon to 9pm.
This is PC rainbow, 8" off bottom of tank, stock SPS AB+ ramped up to 85%, iphone photo