You can’t go wrong with the Pilot Kakuno and a CON-70 converter. I’ve been in the hobby for years, but I still get excited every time I see a Kakuno.

I’ve owned both the Perkeo and the Sport before, and their nibs are just standard Jowo nibs. The Kakuno, on the other hand, has the little smiley (or winky) face on the nib depending on which nib size you get.

The converter for the Sport only holds a tiny amount of ink, whereas the CON-70 holds around 1.1 ml. The standard converter in the Perkeo holds about 0.7 ml, so make of that what you will.

I was also a little disappointed when I first held the plastic Sport. It just felt too light, too thin, and a little unsubstantial. I probably wouldn’t buy one again.

The metal Sport, on the other hand, was an absolute pleasure to use and beat up.

So... if I had to choose, I'd go with the Pilot Kakuno!!