I compared a green G-tech...
I compared a green G-tech C4 .4mm with the green Uni-Ball signo 151 .38 mm. I
used a cheap index card and wrote with both pens then poured two separate drops
of sparkling water and let it stand for a couple of hours. After the hours past
the G-Tech c4 washed out (you could still make out what was written but barley)
and the lines of the index card faded away. The signo writing was STILL THERE as
if I just wrote it. One thing that is different between the two is the color.
One the g-tech c4 the green ink is more saturated and the signo has hints of
yellow in its hue. Dont get me wrong the signo ink is very pleasant and its
waterPROOF ability makes it a great pen. If waterproof ink is not important then
the c4 and 151 are both nice.
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