Here's the RGB diagram for my first iteration in the 7000X - running 2 XR5 420mm radiators, both in push/pull with white QL-RGB fans. I did leave the SP-Elite in the back just for giggles ... well, mainly because I'd not used the SP-Elite for anything and wanted to play with it. Both of the radiator fan banks are synchronized but in reverse order. The Top Rear Inside fan is synchronized with the Front Bottom Outside fan. IMHO, this is pretty cool.
I could probably do without the Lighting Node Pro for the strips and just put them on the Commander Core XT. However, with 4 QLs and a SP-Elite (with a potential swap out of the SP-Elite for another QL-RGB fan), there's already a heavy 5V load on the Commander Core XT.
I could also put the radiator fans (currently on the Commander Pro) on the Commander Core XT as well and then use the Lighting Node Pro for the strips and the HydroX components, eliminating the need for the Commander Pro. I'd need a couple of splitters for the side fans but I'd also be able to control the PWM from the Commander Core XT. However, I do have something of a fetish for temp sensors and the Commander Pro lets me put 4 temp sensors in my loop.