There are two companies/manufacturers of the beneficial bacteria, which according to other sources are naturally occurring in the ground and among the root biome of our fruit trees. One of the companies that I bought 10 pounds from has this exact label on the package as the expensive one I bought;
https://www.fbn.com/direct/product/Serenade-Optimum

I didn't know if it is feesible enough an alternative to use for a free aerated compost solution for the 300 dollar price tag. There is not enough experimental evidence comparing the two (ie. compost verses bacillus-concentrate). I think the concentrate would work to innoculate biochar? We know our stone fruit trees suffer a great deal from the bad bacterial gummosis so I am throwing it all out there as a possible solution or question. I know proffessor Ken Johnson has tested this for fireblight in pome fruit in Corvallis which is another bacteria that this beneficial works towards.

Any soil experts out there??