Watercolor inks and Stabilo pens

I had bought them years ago - used them a bit and then kept them in a brown cardboard box. At the time I had bought them Stabilo pens only had a bullet tip (Stabilo 68 pen) or could be bought in the same colors as fineliners. They come in many colors, are dyebased and therefore not lightfast.

The Ecoline and Colorex watercolor inks which I am using are not lighfast eigher. They are very intensive when you use them without watering down. I wanted to find out how much I could thin them down by adding water and was surprised by the results: I used left over ink from the day before, added some drops of water and still got some color on the paper. I then let it dry, then placed ink from the stabilo pens on selected spots and used my waterbrush to dissolve the ink. Nice!