I have managed to get hold of most of the range all except Turquoise (if anyone has a spare sample – would love to hear from you). They all blend with water and react very well with the bleach. There are a couple of small hidden wonders – the Green has smidgen of cyan in the wash, the red reveals hints of pink and yellow and the brown leaches out a very feint blue. Otherwise, the colours are all very stable which is good news if you are looking for a consistent colour writing ink, but slightly disappointing from a creative angle angle. There are identical colours already tested that deliver far more visual drama. That said, these will blend together beautifully and I have a test piece in mind that will suit perfectly.