This may help:
C-41 dye histogram (Gold 100 chart image), towards the right is increasing density (these are for the raw data, so the absolute values)
Split-Bath (pic of Gold 100 @ 400 chart image)
The yellow dye density range (dmax-dmin) is a little smaller in the split-bath image, magenta close to identical in dmax-dmin.
The cyan dye dmax-dmin is smaller in the split-bath image, by the same amount.
The magenta and cyan 'shapes' are a close match, the yellow 'shapes' the most different among the 3 but still bear some resemblance.