And you are co-inoculating your batches, especially the BM4x4 ones, right?Got final measurements and adjustments done after a very brief visit to @mainshipfred 's crush/press operation to pick up some oak chips for fermentation. Numbers were as follows:
Cab Sauv: 24.4 Brix, 3.55 pH
Zin: 24 Brix, 3.70 pH
Syrah: 23.2 Brix, 3.86 pH
PS: 24 Brix, 3.65 pH
I tweaked the Zin and Syrah by adding a bit of tartaric. BM4X4 on the Cab, D254 on the PS and RP15 on both the Zin and Syrah.