Hi, i own and operate and cook for a small catering business, 12 years now and have noticed that my disposable aluminum full and half size pans and lids are getting thiner and thiner, actually have to double up or be very careful with transporting, they can collapse easy, does anyone know a good brand? heavier? also have always had a problem with the pans while transporting, holding till served, sometimes 2 plus hours, reacting with some foods, mainly potatoes turn almost black, and tomatoe products actually will have aluminum on top of food and pinholes eaten through lids. HELP!! These are set up and leave events, so using real stainless is not an option.