Hacked it successfully...
February 2, 2012
Hacked it successfully into a Fisher Space Pen (the Astronaut variety with a
clicker, although refill-wise it doesn't matter). It's a couple of millimeters
too short, though, but it doesn't affect writing per se but it's hard to see the
tip on paper. Truth be told, I bought this refill in attempts to hack it inside
the Coleto multi-pen (due to it being considerably cheaper but virtually
identical), but it wasn't possible easily enough. Writing quality and emptying
speed are practically the same also.