I have a Hongdian Black Forest EF and I love the EF nib in particular. I find the Black Forest a little too slender in my hand to be comfortable for long writing sessions, so I’m wondering what other Hongdian pens (with an EF nib) people would recommend I try?
Pilot Cavalier is the way to go. The fountain pen version is a little girthier than the gel pen version, but mines still felt closer to a thicker Bic ballpoint than the common fountain pen widths.
I know someone with that same pen. The click cap is nice at first but gets significantly looser after years of use. From experience with other such caps, there may be the possibility that it will get looser until it no longer holds. I don't know their pens but if I were you I would look for one with a screw cap.