Yep, the Kaweco Sport (EF nib) is a winner, as far as I'm concerned, and I'll be buying another in a different colour. I initially had two trepidations: a) There DOESN'T seem to be a converter available for the Kaweco Sport, so you must use Kaweco's own (or other "International Short") ink cartridges (no bottled ink) and b) my usual concerns about what a particular manufacturer considers "Extra Fine" compared to "Fine." OK, I heard that others have made an "eyedropper" out of the Kaweco by "greasing up" the threads with silicone grease so you can fill the BARREL with ink. I'm perfectly happy using J. Herbin cartridges--"Perle Noire" for black and "Eclat de Saphir" for blue. Coupla my favorite "bottle" inks that happen to also be available in short cartridges. My problem with nib widths is a common one: that what one manufacturer calls "extra fine" is closer to "fine" (or even "medium"). The EF nib that came with my Kaweco *IS* an extra-fine. It writes smoothly (*not* dry, at least not with J. Herbin ink), first time, every time. No skipping, no scratchiness. I did NO "preparation" of the new pen. Snap in the cartridge, give it a couple of shakes, and start writing.

I bought mine with a pocket clip (another $3), but this puppy is SO short, you'll be tempted to just carry it in your pants pocket. The cap SCREWS ON, so there's no danger of it coming off if you just throw this little guy into your backpack or pocket. It's comfy writing without the cap posted, but WITH the cap posted (so you won't misplace it), it's still shorter than your average FP.

Terrific pen, worth every bit of the price. Definitely want another.

Firstly, the pocket-able size of the pen is fantastic for taking with you. With the cap posted, the size is perfect. My only real complaint is that the nib has been very angle sensitive. If I rotate the pen a few degrees off of level, the nib begins to skip and leave blank areas. i have never used a fountain pen that was so restrictive so it caught me off guard. I didn't notice this at first as the pen writes amazingly well for the cost, but while doodling and drawing there were drop outs in my lines and curves when my hand was sweeping. This is my first Kaweco, so I am not certain if this a defect or just the way these little pens write. On the whole, I love the pen and will probably purchase more. One more thing. This wonderful little pen has not had a single startup issue and writes immediately every time I need it

I purchased my Kaweco Classic Sport a few months ago, and I really like the nib and the way to ink flows. This extra fine nib is worthy of the name. But I hardly use the pen because it’s so small and so unbalanced for me. I have large hands and though I use 50 lb. dumbbells, my writing grip is from learning to write with a technical pen in elementary school. A loose grip was the only way to make the writing look smooth and I have a very loose grip on the pen when I write. The barrel of my Kaweco Sport weighs 6 grams, while the cap and clip weigh 7. The pen barrel is too short for me to use without the cap, but the cap throws the center of gravity out to the web of my hand. My pen only touches the web of my hand when writing is paused. For long writing sessions, I want the center of gravity near my middle finger.

The line weight is only slightly thicker than the Tachikawa Linemarker A.T Sketch Pen in 0.3 mm (my current favorite Jet Pen), but the Tachikawa’s cartridges are only available in black.

If your grip is enough different from mine that the balance doesn't bother you, then this is the pen for you. This is an otherwise excellent pen.

This is the first fountain pen I have ever purchased and it is truly a workhorse. Rarely, if ever, skips. I would order this pen again and again. Additionally, I am a lefty and was always told I'd never write with a fountain pen....and because of my experience with this pen, I now have a twsbi540, and have a namiki falcon resin on order along with a few others that I am excited to try out.

Also, the shipping from here was ULTRA fast.

Purchased this pen about 2 weeks ago and I can say "I Like It". Its definitely smaller than I expected and its casing in all PLASTIC! The description of the pen probably mentioned this fact however I missed it. So be aware its very lite due to the plastic body. Extra Fine NIB is the way to go...writes beautifully.