The oily pile has acquired some color! I left a few skeins blank, but now that they are washed they have turned a few shades lighter. I made the rust skeins progressively lighter by adding them to the pot in 10-minute intervals. The dark blue ones are actually a mistake. I added too much dye to the pot, so they were much darker than I had hoped for. I took them out and added another set of skeins, which turned out the "right" color.
Here they are, close-up.
I have a striped sweater planned for them.