I intended to use only the 6 + 2 split-end to power an 8-pin GPU, as that would make cable management slightly more convenient in my specific case.Where is the picture of this cable and what is your skill with a soldering iron (and the various other required tools)?
I decided to use the first connector on the cable. It looks slightly offputting to have the split-end connector occupying space inside the case, but it’s not that big of a deal.Usually the first connector is rated for higher current because the wires are thicker and the connector is a HCS type. So it's better to use the first connector on the cable than the daisy chained connector.