So I actually used one of these pens for day to day writing until it stopped
working, and simultaneously used a Uniball Signo 0.28mm for the same purposes
until it ran out of ink. I filled up one Doane pad, and two Clairefontaine pads
with notes. I'll compare the two:
-The Uni-Ball pen lays down a thick, smeary river of ink, while the Pilot pen is
far more sparing. I used both pens at about the same rate, and the Uni-Ball ran
out when the Pilot was at about 2/3 expired.
-Both pens stopped working at around the same time. The Uni-ball ran out of
ink, but the Pilot's tip just stopped functioning for some reason. There was no
obvious mechanical failure, but with about 1/3 of its ink reservoir remaining,
lines became spotty, faint, or not inked at all. I'm not very hard on these
pens-- My writing style does not put very much pressure on the tip.
-The Pilot pen made the better line. Lines had superior definition, and smudged
-The uni-ball pen made a much more consistent line. It smudged more easily, and
had poorer definition, but it performed in exactly the same manner until it ran
out of ink. The Pilot pen sometimes took a few lines of writing until it
started acting normally, and the quality of the line varied from day to day and
line to line.
-Both pens were very nice to write with. The Pilot pen had a slight advantage,
but both felt very good compared to other pens.