Good choice! I love Pilot pens. I usually have a few of these kakunos inked in different colours. At the moment they are filled with some inks from a J.Herbin scented sampler box. I was sharing the joy of cursive with my little niece.

I've had high-end pens over the years, but I always seem to come back to this one:

It's a Rotring ArtPen. I've been using it/ones like it on and off since primary school (when I thought the tapering was the height of elegance. I have since discovered reason and find it appalling, but it does balance the pen wonderfully. The tapered end can also be used for no end of things, from prodding coins out of car seats to poking the drawstrings back into hoodies.) This pen gets no love at all on the internets, though. I'm not sure why. The B nib is maybe overly wet, but I like fountain pens that way. I have weird spider hands and it's the only way I manage to avoid scratchy scribbliness. I use Clairefontaine notebooks, and they can handle absolute torrents of ink, so it works out OK.

Glad there's another fountain penner on here :) :)