So what I am hearing here is that the soil test says the pH is off. Could be from this or that, but it could also be from other things. Don't chase it around - add compost and build the SOM.
What did the soil test say, that changed the direction of the cultural practices you were going to do anyway?
Now that I know that clay's texture(platelets) has nothing to do with water infiltration, percolation, or drainage,,, I wonder what does...