I've come to learn that there really isn't anything truly "off topic" in this forum...
That said, thanks for posting your numbers @YUP - it's great to see some real world data. Sounds like it's pretty close to what I would have expected from the BSR video on this topic. I think they saw improved returns up past 90 PSI which then started leveling out so you probably are pushing your optimal return rate for that setup at this point. Glad it worked out!