Wherein I Make a Strong Case for Blocking

These are two swatches I've done for the Caller Herrin I'm trying to get underway.  The colours are different, as I'm experimenting with several options, but the swatches will still serve my purposes.

One swatch has been wet-blocked.  The other has not.

Can you guess which is which?

Also, I'm sure I don't need to tell you, but I'll say it again, anyway: Kate Davies is a genius.