TonyB,
the jeff varasano site was the real breakthrough for me too - i aim to stick to his guiding principles.
the long cold ferment (~3day) i used until i started reading up on Mozza Restaurant and Nancy Silverton (via pizzaquest). this uses an even higher hydration ~78% which i've not got to work as it over ferments too quickly and sticks on the peel. i got round it by reducing the cold ferment to 1 day in bulk and 1 day in boxes whilst reducing the hydration to 70% and the ADY down from 0.2% to 0.12%.
your idea of leaving out the ADY is something i've not tried and could well work for me.
ps the 70% hydration only just about works in my domestic oven and hope to try it out in my wfo this coming year.
best wishes,
natterjak,
couple of pictures (450g jam jar)

