Tactile Turn

It just feels right.

The goal with any refill modification is to allow the mechanism move like the Pilot G2 does. The Jetstream works a little differently as the point where the spring rests on the G2 is a bit different from the Jetstream. If you look at it up close the Jetstream front is a little longer, so some extra from the back has to be trimmed off. Here is that close up of the fronts:

Front Closeup of UniBall JetStream on top, Pilot G2 on bottom. Note they are lined up where the spring will rest on the front is in the same place.

Front Closeup of UniBall JetStream on top, Pilot G2 on bottom. Note they are lined up where the spring will rest on the front is in the same place.

UniBall JetStream on top, Pilot G2 on bottom. Note they are lined up where the spring will rest on the front is in the same place.

UniBall JetStream on top, Pilot G2 on bottom. Note they are lined up where the spring will rest on the front is in the same place.

So from here you need to take off the end piece on the Jetstream:

End cap of Jetstream removed.

End cap of Jetstream removed.

Next, trim off about 1/4" of an inch with sharp knife. I didn't get a measurement of before, but always trim less because you can always trim off more later and it is nearly impossible to add on more. From here you put back in the end piece. You'll have some of the goo at the end come out and just wipe that off.

Put the cap back in the refill and wipe off the goo.

Put the cap back in the refill and wipe off the goo.

The final measurement should be something around 3.333". A hair longer or shorter will be fine, but the mechanism is very picky about lengths so much different and the pen simply will not work.

The final measurement should be something around 3.333". A hair longer or shorter will be fine, but the mechanism is very picky about lengths so much different and the pen simply will not work.

When the Jetstream has been modified to the proper length put it back in the pen and screw it together. When the pen is in the advanced position the refill should stick out this far.

When the Jetstream has been modified to the proper length put it back in the pen and screw it together. When the pen is in the advanced position the refill should stick out this far.