Very good question Snowdy.
I don't know the answer, but I'll add this,
when in Montreal I go to a local little pizza place, when you go in to the counter and ask for a pizza, the guy reaches under his counter and pulls out a big gray tub - these are the same tubs they use in restuarants that they put the used dishes into ... you know sometimes when you are eating somewhere you may see the guys cleaning tables, when people leave... they push a little cart and on the cart is this big gray tub they put the plates into........
well the guy pulls this big tub out, and it's FULL of dough - one HUGE piece of dough... he takes his pastry cutter ( just a steel blade with handle ) and cuts off a piece of dough, and gets the size bang on - all the time - because he's doing it a hundred times a day 7 days a week, just by eye he knows ......
btw, he just has a dish towel ( probabally moistened ) on top of the big tub of dough ....... I would say that at certain times of the day when they know pizza orders will be coming in, they know when to bring the dough out of the fridge, and know when it's perfect.... and I guess they are not worried about the yeast in the dough dieing out or whatnot as the high pizza oven temps will do the trick even with yeast that has piddled out a bit, if sitting in the tub for hours and hours, but then again, that probabally isn't even a factor.....
Btw, the other night on the World Pizza championships, they were mentioning that the American teams let their dough rise for 24-36 hours, yet the Italians make their dough basically a few hours before they bake it.
- another really interesting and bizzare comment I heard was that one of the American pizza guys said that he baked his pizza at 450 ? ..... and that the ovens in Italy were hotter, and he could tell because his pizza was burning.....
I digitized that video, maybe I can pull out that part so people can hear it for yourselves.
Btw, I liked watching this show, but to be fair to the American team, I have to say it wasn't a fair competiton. The Italians had an advantage for sure, as they were using ovens they were used to, flour they were used to etc.... right at the beginning of the show
they said that the Americans could bring their knowledge, and years of experience, but they had no clue how the ovens even behaved ! ....
isn't that like a professional car driver driving a new car he's never tried... in a race of his life ? - not really that fair.
Mark