The discontinued Montblanc Racing Green is a favorite of mine and although it’s discontinued I still have a couple bottles. So let’s get this out of the way first – Montblanc Irish Green is nothing like Racing Green. The writing samples show that Irish Green is a much brighter green. When I think “green” the color I think of is more along the lines of Irish Green.
I rather like this shade of green along with its properties. The ink has good saturation and some subtle line variation. Plus, it dries in 5 seconds or less with my thin nibs on Doane Paper.
I’ve also been using Iroshizuku Shin-ryoku recently but I seem to prefer the Irish Green color slightly more than the Shin-ryoku although it’s close enough that I might pick Shin-ryoku on some days, depending on my mood.
Cleaning was easy and problem free.
While not really water resistant, I could still read what I wrote after the water test although I wouldn’t want to rely on it.
The TWSBI Vac 700 is the only pen I’ve used this ink with so far, but with 5 different nibs – EF to 1.1mm stub. (I did ink my Huron Grande this week but haven’t used it enough to comment yet.) I used the extra fine nib as my writer for a day and didn’t have any hard starts or skipping in writing about 10 pages, The other nibs were just used for the samples below but didn’t have any issues.