For my cars, I like the
Cap-o-matic M4B Military at $7.50 each. Pretty cheap and as others have pointed out, it works in wet or freezing weather.
While I really liked the pocketable form factor of the bullet, it was not very comfortable to hold. The cap wouldn't stay on the tail for long when writing and removing the cap from the closed position kept causing the main body to separate. It was a pain to keep pushing it together every time I used it. I finally stopped carrying it.
Recently I started carrying an
X-750 Explorer. At $22.50, it was a little more than a bullet, but it is tremendously better ergonomically. It is about 3/8" longer than a bullet and not as tapered at the ends. This allows the cap to stay on the tail when writing for long periods. Most importantly for me, it has a rubber cushion grip that is very comfortable. It is now my favorite pocket pen.
I did look at the Trekker, which is the competitor to the Inka. The Trekker has the same cushion grip as the Explorer, but no place to put the cap when writing. It is about 1/8" shorter than the Explorer with a key ring attachment.
None of my newer pens have had the blobbing problem even in the medium point. My older medium point pens blobbed all the time. Maybe they have fixed it. However, I still plan to try a fine point when I need a refill.