This is a superb product which I now use constantly for idea sketching as well
as for larger lines and areas on finished illustration. On a lighter fine grain
paper or bristol board it gives a very smooth line but on rougher sketch paper
you get more of a visible, ragged edged look. I think it also depends on how
absorbent the paper is but regardless this product is great because you can
regulate flow by applying pressure to the ink reservoir.
This brings me to my other point, which is that one of the reviews here states
that the plastic ring (white on this pen, coloured on others) is some kind of
seal. In actuality, this is meant to be discarded and it used I believe as a
spacer while the pen is in it's packaging, to prevent the cartridge from being
punctured. In other words you discard this item and attach the ink refill
directly to the clear plastic grip section (this can be seen if you look closely
to the photo with the test brush strokes).
I hope this helps as I was also a bit puzzled at first and I can see it would
seriously impact this products quality to make this mistake. I plan on ordering
the fine tipped version soon for fine detailing as I have really fallen in love
with the feel to the point where my dip pens have been permanently retired.
This is a great product, I never really used brushes before but now I use this
all the time for rough sketching as it forces you to be less detail obsessed and
loose. I have the standard tip but I plan on picking up the fine tip to see how
it fairs on detailing finished illustrations. At the moment I mainly only use it
on finished inking for the bold outer lines or to block in shadow regions.
Also, I feel like I need to correct a couple of the reviews above that are
mistakenly thinking the little white (or other colours depending on the tip)
ring is a seal. It is not a seal and is meant to be discarded (the instructions
show this), the pen should look like it does in the below test illustration, the
ink reservoir simply attaches directly to the clear plastic grip section.
I hope this is helpful as I have read others marking this product line down for
"flow issues" when I am afraid they are actually assembling it incorrectly.
Just to reiterate, this is an excellent product, much less annoying/ messy than
an actual brush and ink and please ignore the reviews that mention flow issues,
it's actually not a real flaw or problem.