also, i know from experience, ive looked at that same cf you did and it shows the light spectrum on the back in a much more condensed consumer cut down version. if i remember correctly (been over 8 months since i looked, cool is far left, warm is far right, and theres a needle over which is which. you want a mix of the extremes, both far right and far left.
ive heard rumors of wanting more of the cool, bluer/clearer bulbs. so split em up i suppose. but if you see some with spectrums in the middle, find the extremes and get those!