Blueprint has green belts, but having tested all belt types & 5 different configurations as well as checking out different videos on different tests & attempts at tests I have found this setup for bulk inserters to be the best (it's faster than any other setup) for train cargo unloading using essentially any belt type. I have the splitter setup to only output onto 1 belt, but you can remove for 2 belt output which will be even faster if you don't want those 2 belts to ever recombine later. Posting for personal usage.