Not sure why there are still cookie imprints the very first time I used my new cookie sheets even after hand washing with Dawn. Otherwise I love that my cookies were evenly cooked without dark bottoms by the time golden on top as has happened in the past! Silicone grips are a great idea too; I have pots and pans with handles that do not get hot so am used to not using pot holders and not thinking, got a bad burn once.