Jetpens is great. Uniball inks are great. That being said...
The green color flows much less smoothly than the blue, black or red ink (which
all write fine), and has sort of a "gummy" consistency at times. I like Uniball
because their ballpoint pens write really well like gel pens, however, this
green color is really cramping my style. I've purchased a pen that comes with
the green ink already, the green refills in both 0.5 and 0.7 sizes, and all of
them write much less smoothly.
I wonder why green is so different from the rest...