Kodachrome developing in BW, tried and true current repeatable process?

Hi, I know there are a lot of procedures floating around out there and they vary. I’m wondering if you could point me to the most tried and true (and recent) procedure for developing Kodachrome in BW and removing the anti halide layer evenly. I see there are could of labs doing processing, but I don’t know if they are doing it by machine or by hand. Any experience sending it out? Thanks

This "Sticky" thread may be useful for you.
Ironically it is in the colour film sub-forum: https://www.photrio.com/forum/threads/kodachrome-as-b-w-neg.45429/