My mix tested around 7 pH with a cheap 3 prong push in and a chemical pH test kit. Chemical was a little higher, prong a little lower. I added 1 cup iron-tone which is iron sulfate and elemental sulfur. Plus 2 cups soil acidifier, both espoma. A little peat for some quicker down, hopefully.
Haha OJH, it's a little off. I'd wait until it's a better mix.😉