This is a splendid review. I bought one of these this week. It arrived yesterday, I immediately inked it with Visconti Blue, it wrote right out of the box, I had gotten a nib with some tooth, and I forsook all my other pens for the next 24 hours. I agree with the OP on nearly every point. But I do have a few things to add.
CLIP. This thing really is tight—at first, that is. From the moment I inked this pen I decided it would have to be in the EDC rotation or else it might not get much use. But I figured getting that clip to cooperate might be like breaking a bucking bronco to make it saddle-ready. And the first several times I clipped the pen to my shirt pocket, it was a two-handed operation: I would hold the cap in my left hand, make a wish, pry the clip away with my right thumbnail and forefinger, and then slide the whole thing down onto my pocket. But today I'm happy to report that the clip has loosened to the point at which clipping the pen to my pocket and removing it are both one-handed operations. In the removal, I grab the end of the cap and pull, just like my other pens, and the clip slides right off the pocket.
The cap weighs 14 g; so do all the other pen parts combined, including a full converter. Unposted, the pen is well-balanced, the center of gravity slightly forward toward the section, which is where I like it. But when I post the cap the center of gravity shifts all the way to the back finial where the cap and finial overlap. This makes for an awkward writing experience—at first, that is. I've spent quite a lot of time in the last 24 hours writing with the cap posted. I don't normally post my caps, but it's nice to know that I may post if I want to, and I usually want to when I'm writing on the go (e.g., adding items to my shopping list while in the grocery store). And it didn't take me all that long to adjust to the elongated, unbalanced Duragraph during short bursts of writing. Writing with the cap posted wasn't as awkward as I assumed it would be.
THREADS. I found the male threads on my pen to be noticeably prickly, though not quite sharp. Nevertheless, a full day's worth of pen openings and closings smoothed the barbs off the threads. Now when my hand unconsciously migrates up the pen from the grip, I don't even notice the event.
NIB. When I pull the pen out of my pocket and get a glimpse of it, I feel a smile come on. And then I uncap the pen, see the nib, and the smile vanishes. It isn't an ugly nib; but in its appearance it doesn't deliver on the promise made by the striated, semi-translucent amber resin. Visually, it isn't worthy. However, it is a decent performer: as I said, it wrote straight out of the box. It did dry-start on the first upstroke, but after a couple of passes with a .002" brass shim through the tines, it hasn't dry-started or skipped. And, like the OP, I'm enamored with the tooth. All my other pens have smooth nibs, and the tooth on this nib is a new toy to play with. Eventually, probably, I'll swap this nib for a Goulet/JoWo two-toned or black one. And then I'll have to find a way to replace that missing tooth.
Edited by Bookman, 14 May 2016 - 11:32.