Lol.
KZ are great bulbs, I like my Fiji purple a lot, but it cost $28 for one 24" bulb. Is it $8 better, no. Not to most people.
If the blue plus is more blue and the purple plus is lighter than the Fiji, the ATI combo is close to the KZ anyway because you said the super blue is less blue and the Fiji is softer/less white than the purple plus than it should NEARLY equal out in the end...except for the extra $20 out of your pocket (in a 4 bulb combo) and all the softness.lol (rim shot, and crickets)
I'm up for trying a super blue, I bought GIESSEMAN ACTINIC PLUS (equivalent to blue plus & super blue) but reefgeek sent me ATI ACTINIC instead, I never would have bought actinics if they didn't screw up but I needed less PAR anyway ( hence the Actinic plus purchase) and I like the mix of the actinic/blue plus combo for dawn/dusk much better, not as much washing out from the blue.
Merry Christmas everyone ! Happy Reefing to all, hope you get some Reefing goodies!