I had 2 coral plus and 2 blue plus, I recently just switched to 2 blue plus and 2 actinic. First setup was just way to much par for softies. Was also to white for my taste, Now I use my hydras to add the amount of white I like.
On second thought and some reading forums, I’d probably say b+ c+ b+ c+ instead of 4 b+ bulbs. Seems like both bulbs are needed (and satisfactory) to pull off the best SPS colors (because of some wavelength selective protein voodoo). You might be able to mix in the needed vawelengths with the AI for a blue+ only setup to get the most PAR AND best spectrum, but it seems to be easier to just have a good base with t5’s.