Great and helpful thread.
I have 5 gallons of sauv blanc made from frozen juice from WGD. Supplier numbers were TA of 0.70, pH 3.37, Brix 24.0. I measured pH at 3.5, brix at 23.5, SpGr of 1.100. Supplier included 10 gm Tartrate which I added before primary. Immediately before primary pH was 3.6...