I got a sample of Sailor Sei-Boku from the Writing Desk. I love how it looks on reviews, so I figured it would be nice to try it. So I filled my Esterbrook J (9550 nib) with it. It did not write, so I thought maybe I forgot to clean that pen. So I pulled out my other Esterbrook J (9461 nib) and filled that. It wrote nicely. But next day when I tried to write with it, I noticed that the nib unit is clogged. It did not write at all. So I emptied the pen and cleaned it thoroughly. Now the pen works, but I'm not sure what to do about Sei-Boku. I have not dared to try it with other pens.
What do you guys think? Is it normal for Sei-Boku to clog a pen, or does it just hate Esterbrook Js? What kind of pen would you try Sei-Boku with?