I use spotone, but am unhappy with them. The fact that some change color with dillution annoyed me to the point of blind fury with one print where I needed the olive to remain olive. I thought my eyes were lying to me when it went blueish, but have heard others grumble the same. The print was on polywarmtone lightly selenium tones, so I needed to use brown along with olive. However, the Olive was not playing....

Finding a replacement which can be blended and mixed is something I need to do, tho the spotone has been great 98% of the time, when more neutral tones are involved. Blue from Olive, still has me baffled!!!!!!!!!