I don't think there is a material difference between the ink output of the RT/DX
lines. Other than the obvious ink capacity of each refill, I prefer the
retractability, grip and design in general of the RT. Definitely one of my
favourite gel pens - it writes a lot better on 'normal' paper than the Hi-Tec-C
line, although I still prefer Hi-Tec-C 0.3mm tips if I have better quality
notebooks to use.
I am obsessed with this pen! I bought a whole box of them (10)!!! The fine
writing line is perfect for fitting a lot of information in a small space.
Especially filling out forms. I used to be a business person and was very strict
about using black ink. Whatever. I then switched to blue ink feeling it was more
expressive. The blue/black ink gives a perfect balance of color.
This is a decent pen. I like the look and feel of the Sarasas better, and I
ended up preferring their 0.5mm tip to this one's 0.38 point... it's just too
fine for me. Better suited for drawing than writing in my opinion.
I purchased a sack full of pens in the 0.38-0.40mm size to find a good
disposable with a a very fine point and this one was my favorite. Kind of a
tossup between this, a Pilot Juice, and a Zebra Serasa but this blue/black just
pops on the page much better than the other blue/blacks (this one is a bit on
the green side where the others were a bit more purple). I thought the Serasa
was most smooth but it was 0.4mm vs. 0.38. No pen produced a line a tight as a
uni-ball Jetstream 0.38mm but that pen is not gel (it's a freak). If I could
only have one pen for all purpose use, this would be it. It is cheap, it writes
great, and the ink dries with decent quickness (not as quick as the pilot or
zebra), and it's permanent. So i came back and bought a hand full. I nearly
chose the Pilot Juice though as it seemed to have a larger ink well for the same
price. Food for though there. One last thing, when I tested all the pens that
I purchased one of the tests was how well the pen handled being pushed in
upstroke on the page at low angle. This produced a line thickness variation
when you hit the sweet spot. This pen can do that, not as good as a roller ball
but it does it and the ink doesn't pile up on the tip and make blobs on the page
like a ballpoint will (jetstream).
This has got to be my favorite pen line I have ever used. The ink is super
smooth and thin, as well as the body being very light and slim to the point
where I could carry nearly 5 in each pocket barely feeling it. However for this
color, I feel as if there is just not enough ink to last me more than a month. I
am ordering more, and hoping it doesn't have the same problem