I have only used the white and black Kuro Sumi colors so far, I have tried a few skip candy colors. They are a toss up between them and intense colors. The white did fade down, so I will have to hit again.
Well it depends on the brand of ink used, This was the Kuro Sumi White, I am pretty happy with this white, But there is one or two other I am going to try before I stay with one..