Blues are at about 100% and whites are at about 25%. I've played with them over the years and find this is my optimal setting. I like the look with this mix and the corals do really well. When I first set them up on my 55 gallon I bleached everything as I was running 2 at almost 100%. On that tank I turned all channels down to 25% and things recovered.
One thing I found with lights like this my SPS
grow like crazy. Because of this they suck everything out of the water. I dose Alk
daily and trace elements weekly to keep things in check. Without trace elements my coral were fading as the water was being stripped.