I was asked how my Rotring Core XS nib compared to another fountain pen’s nib. Unfortunately I don’t have the other fountain pen to offer a comparison.
I offered to do a comparison of a different sort and thought others may be interested in seeing the results.
My Rotring Core is armed with Private Reserve Supershow Blue ink and an extra fine (XS) nib. I grabbed my Pilot G2 0.7mm, 0.5mm, and 0.38mm. They are in that order in the following pictures. (I apologize for the lighting – I did my best to salvage with Photoshop).
I would say the Rotring Core XS with Private Reserve Supershow Blue is between a Pilot G2 0.5mm and 0.7mm on 20lb every day multipurpose paper.
Hope this helps or at least is interesting to someone out there. Take care and be well.
Miscellaneous Ramblings of a Thirty-Something DIYer 
javajeb
Rockin! Thanks for the work. Looks interesting. May have to pull the trigger.
diysara
no problem :) let me know if you take the rotring plunge :D
javajeb
have to see if it’s still on sale. have the link in my ‘tronic brain: evernote.
The Archer
Great! Got a Core too – the Rubidium. It’s fiery red and has an XL nib. Fun pen! :)
Andy McNally
Very nice review. I may have to get one soon.
Shanda
Your highly organized to have so much in your purse. My purse looks nothing like that. I’m always trying to rememeber to buy lil pouchs for everything, but I always forget. lol
Shanda
It does look like fun.
Gentian
I like the angry panda.