To the guy who is complaining about the reservoir size. It isn't that the .38
size has a smaller reservoir in particular, it's that the retractable signo's as
a model have a smaller reservoir. Any size of signo DX models will have the same
size reservoir. If you want .38 and still want a big reservoir go look at the
.38 signo DXs. They also come in .28 and .5 btw. Anyways, the pen itself has
been good to me as all the models of signo I've tried have been. Other than that
sometimes not having to worry about a cap can be a good thing. Also, the grip is
farther down the pen, which is better for me because I hold pens closer to the
tip, which with the Signo DX model is pretty far up so I end up holding past the
While the 0.38mm tip writes fine lines, I am rather disappointed in the ink
reservoir. If you pay close attention, the inner diameter on the refill is
much smaller than most normal refillable pens which explains why these pens have
such a short lifespan. The inner diameter on this refill is 2mm (approximately
3/32”) whereas other pens, like the Zebra Sarasa or the Uni-ball Signo 0.5mm,
have a much wider inner diameter. These pens have a 5mm (approximately 5/32”)
inner diameter, resulting in 2.5 times more ink than the Signo 0.38mm RT.
It’s a great price, especially for those who love super fine tips. Me?
I’ll take the extra ink with a 0.5mm tip.
I love these pens. They are by far the best pens I have ever written with. I
have ordered 6 refills and I bought the pack of assorted colors because they are
great. I use the different colors for taking notes at school. I like how pointy
and fine they are. I have gotten other brands of 0.38 and 0.4, but this is by
far my favorite.
This is a nice pen but it does tend to skip here and there which can be a drag,
especially as a college student who takes frequent notes and only uses pens. Compared to the Uni Signo UM-151 this is not as dark in ink color, but will not
smudge as easy with highlighters right away in my experience.