I am looking into making some custom cables for my PSU and had a question about the CPU cables. My mobo supports and 8 pin and a 4 pin. I am using both for the extra power but run into issues with room on most PSUs under 1000w. Is it viable to split the extra 4 pin off the 8 pin? They are all on the same rail iirc. I am just trying to make the sleeving of the PCIe cables as easy as possible. Splitting 4 off the 8pin saves me from splitting 6 or 8 off the PCIe.