I'm not sure how helpful this would be for folks, but here's my H&D curves of various films, including Finesse 400 which I started testing yesterday. Finesse is the green line (second from the top). Apologies the colors are so close - I didn't pick them (PowerBI did). I also did an H&D on pen and paper and using that I came up with a gamma of 0.57 and CI of 0.50 using the published dev time for XTOL although I adjust my time due to developing at 19C instead of 20C (as that was my room temperature).
I use XTOL-Replenishment with a DIY rotary using a JOBO 2500 drum (with a pre-wash) so I'm not sure if my times will translate but in general I find that my times are usually close to XTOL Stock times which I think makes sense since I've read one should subtract about 15% dev time to hand agitation times when using a JOBO; but likewise XTOL-R adds about 15% more time. So it sort of cancels out. That said, the CI is a little under the Kodak standard (0.56 I believe) so I will likely dev another strip today with a bit more dev time just to see the difference.
I cannot calculate ISO without the CI being closer I believe, but I'm also using my enlarger and not a sensitometer so I don't know how valid that would be anyway.
All said what might actually be helpful for folks is to see the curve. Notice it looks similar to HR50 in that I was able to get both the toe and shoulder within one exposure test. It's not shown here but I did several tests of FP4 (and also Pancro 400 which isn't shown) and wasn't able to capture both in one exposure with those films. For CHS you can see it just starts to curve over a little. This indicates to me that this is a film meant for that "classic" look similar to how Adox advertises CHS ii. For folks wanting a long straight-line, this is probably not your film choice at least based on my testing and developer.
I'm not expert in H&Ds or anything (in fact only recently learned how to do them) but a strong toe and shoulder makes me think the film probably won't push quite as well. I'll try it anyway but I was hoping to try another film other than HP5 to bulk load and for pushing, just to try something new.
Another note, the pre-wash didn't have any color to it at all. AristaEDU 200 (Fomapan 200?) is green. CHS ii is yellow. I think T-Max is purpleish? I had one film that was blue but don't remember what it is. But this was clear. It did have an odor though which smelled a little like Rollei IR but not quite - it was more, erhm, peppery I guess? I realize I'm trying to describe the subtle notes of what's just pre-wash water but even so thought this, plus the above, might be helpful for folks trying to pin down where this film comes from.
I haven't actually taken any photos with it yet at this point - just film tests. I'd like to try to get my CI a little closer but will likely spool up a roll in a day or two, though not sure when I'll finish the roll. I'll shoot that one at box and then start trying to push it.