I have a P12 that runs my 12v Megatree and my simple 12v equalizers. It also ran my 12v megastar on top of the tree. This year I am looking at changing my megatree star from 12v 2811 10ic/30led stuff to 5v 2812b pixels. Therefore I need to add a 5v power supply to my megatree enclosure. I will daisy chain the 2 power supplies (Earth/Neu/Live) together so I only have 1 power cord coming out of it. My question is with regards to configuration of the P12. Currently I am using Option 3 of the following. Im going to have to change to Option 4 correct?