Thanks Tim and Joe (and others).

I'll bottle as needed, and I'll reserve maybe 5 gallons or so for
tannins... and we'll see. 15 gallons of Cab would seem like such a
waste, but since it's summer I figure I'll be drinking the 30 gallons
of chard (or at least feeding it to those that are going to help put in
the yard ;P).

Now to figure out how to make "Le Crema" style Chard....