I've owned this headset for a while now. See my review here. I'm on my second one since I did wear out the wire on the first one which is a weakness. Although, I imagine the different shape of the newer models (750 and 800 or later) helps since it appears to protect where the wire comes out of the body.

The lead rotates slightly each time you press down and lift up to keep the tip worn uniformly so it always writes smoothly. There are versions with nicer bodies as well.

 To some,  Field Notes  notebooks, may seem silly, but they grow on you and may multiply like Tribbles.

To some, Field Notes notebooks, may seem silly, but they grow on you and may multiply like Tribbles.

I keep the Tele-scopic (1.0mm) in the fold of my wallet to have a pen with me most times. I like that extending it also makes it ready to write. They also have a 0.7mm version that might make a better line, but you can refill it with a standard D1 refill (a Jetstream D1 would be a good choice).

  The Uni-ball Signo DX gel ink pen   The 0.38 mm is nice for fine drawing with a smooth dark line. The 0.5 mm is better for writing. Capped, but non-retractable tip is rock-steady. Comes in lots of colors; I suggest the  blue-black .

The Uni-ball Signo DX gel ink pen

The 0.38 mm is nice for fine drawing with a smooth dark line. The 0.5 mm is better for writing. Capped, but non-retractable tip is rock-steady. Comes in lots of colors; I suggest the blue-black.

  Uni Jetstream 0.7 mm ballpoint pen   Hybrid ink is smoother and darker than a regular ballpoint but still writes on many surfaces that gel pens don't work well with. This is the thicker, rubber body series that is more comfortable, but the orange colored one is harder to find ( JetPens has them ).

Uni Jetstream 0.7 mm ballpoint pen

Hybrid ink is smoother and darker than a regular ballpoint but still writes on many surfaces that gel pens don't work well with. This is the thicker, rubber body series that is more comfortable, but the orange colored one is harder to find (JetPens has them).

  Retro 51 rollerball pen   A very affordable classy pen with a very smooth refill. The line width is a little broad, but the  Schmidt P8126  refill is the one you want for a bit narrower line.

Retro 51 rollerball pen

A very affordable classy pen with a very smooth refill. The line width is a little broad, but the Schmidt P8126 refill is the one you want for a bit narrower line.

Retrakt

Karas Kustoms Retrakt pen

Machined aluminum, made in Arizona. Uses Pilot G-2 or Parker refills. Can be made to use several other G-2 style refills form Uni and Zebra. This is the business.