Should I reshape refrigerated pizza dough into ball again when taking it out of the fridge?
You don't need to take them out 8 hours before cooking, that's too long. 1-2 hours is long enough as it gives your dough time to come back up to temperature before baking and get active again. If your gluten is well developed before you put it in the fridge you don't need to work it further, a bit won't hurt anything but won't help either, and too much could make your dough tough. If anything you want it to relax a bit as it will make it easier to shape into a base.