Thanks for results and the pics!
I have not made store bought frozen pizza n over 20 years. Does the pizza you bake come fully or partially baked and you are just kind of reheating it, or are you giving it the full bake starting with an unbaked product? How long do you bake it?
Yes, I make frozen pizza only from time to time, when I just return home completly tired, hungry. I am living alone, so no woman can wait me with hot dinner :-). And when I have taste for pizza, frozen is good, as you can have it stored for long time for such cases. I have opinion, that worst thing you can do, when you are completly fatiqued, hungry or negatively mooded, is to start to prepare meal. Frozen pizza serves good for this reason, at least, for me. Well, spagghetti or other pasta is even better, but pizza is pizza. :-)
I didn't check, if the pizza is pre-baked, but I saw some ones, that are. I just look at recomended baking time, and in half, starting to check it optically, to consider, wheater it is made, or not. My stone is new, I have it only one week, so I've used it only 2 times on pizza. At first, it took 8 minutes, but it was too long, as it was burned from bottom. At second attempt, I've let it 7 minutes there, and you see result on pictures. I think, pizza from fresh dough will be in 6, or even in 5 minutes, as dough is not frozen.