I got a chance to try out the latest beta 2.5.1.1 last night and I’m happy to say it was delivering quite good v curves and also quite repeatable results.
Here is a link to my afpacks:
Another quite good night with 2.5.1.1 for me last night - quite consistent results and they compared closely to manual focusing with the Bahtinov mask. Here are the AF packs for last night: