I went ahead and have added more tartaric acid. From my calculations,
the must should now be around pH 3.66 or so, with about TA .77%-.8%.
I'm not worried about the TA, as I can always cold stabilize it later
on if I want to drop the acidity. The major thing was to have pH lower
than the 3.95 it actually started off at (blast that cold soak!).

David