I used a very long time to pick this ink.
It all started when I decided I wanted a red ink. Then I started to look at Iroshizuku inks, and didn’t find anything; or I can’t remember if I didnt find anything at all, anything that I liked in Stock at Tudos or anything i liked in general.
So I started to look at Rober Oster inks. And this lead to this insane cross referencing all the ink they had in stock versus the PDF color chart that Robert Oster has on their site. And I decided on Direct Sun.
I think it is a good color, but in retrospect I wish I had gone with a lighter and more vibrant color.
Other than that a great ink. I like the Robert Oster inks a lot. They are almost as good as Iroshizuku in terms of writing experience with a lot more color options.