i did the same test in pl2 came up about 95% ( as not bigger size then original oocjpeg) and somehow my export in v3.2 and v4.1 is now settled at 90% there default i think.
i am quite lazy in exporting jpegs because i just watch them on a smart tv and 90% default is ok.
if i need something else i just re export to those parameters because i keep all rw2’s and developement dopfiles.
I think walking to the edge of reasonal possible quality around 95% is the tip over. no more improvement just adding more data aka bigger filesize.
Maybe when you play with the bicubical sharpening and iic profiles settings the quality-slider needs adjustment to gain maximal profit of the settings. don’t know.
anyway, it’s easier to settle for 90% because that’s what every upgrade is resetting to.
