Pens

Gel Ink

Kaco KEYBO 0.7 Preferred
TUL 0.7
Uniball Zento 0.7
Pentel EnerGel 0.7
Pilot G2 0.7
Certain colors of the gel can be scratchy.
Ink lasts a fair while.
They break too easily.
Too expensive.
Sharpie S-Gel 0.7
Writes incredibly well.
Ink doesn't last very long.
Too expensive.