I bit the bullet and bought a new RNX.316 by Caran d'Ache, it was a last piece, discounted to 350 € with taxes (385 USD).
Sadly, only with fine nib, I wanted medium. But first impression is more than OK, that fine nib is pretty wet, so I do not have any major complaints.
Super glossy paper like Rhodia (they have 2 types of paper) causes hard starts here and there but it is not my first pen with this issue, so I blame paper. On any other paper I have around me, there is no problem.
Hexagonal grip is a bit weird in hand, but nothing sharp or uncomfortable, only something new for my fingers to feel. Overall, it is my third Caran d'Ache, I also have 2 Ecridors - it is a bit pricey experience, but still a very good one with this brand. The only thing I am not going to spend my money on are their inks - cartridges are acceptable, but bottled ink is too much for my taste + colors are not that unique, some are even a bit dry.
But enough of letters and words, here you have a few photos :-)