I've been following his advice as well and getting great results. As my over can't get that hot (max 550f) I have found I get the best results if I do a 1 hour

I've been following his advice as well and getting great results. As my over can't get that hot (max 550f) I have found I get the best results if I do a 1 hour rise after preparation and then put them in the fridge for 2 days. Then I make sure to let the dough get back to room temp prior to baking.