Today I received a Wing Sung 601 "Flighter" (yes, I know, I am using that nickname lightly). It came with a F nib, and I ordered it from St. Penpps (Bobby Pens).

I am very positively surprised by this pen, especially by the nib. Of course it is stiff as a nail, but it's much smoother than I had expected.

My only criticism is that capping the pen feels a tiny bit rough, but I hope that will go easier over time.

(I seem to have forgotten how and if we can upload images here, but I guess most of you know what it looks like ).