Welcome to the forum. There are several threads concerning brisket. While I don't fold it over I know a few people who do. I like a lot of bark and folding ruins it. Brisket is super fatty and will not dry out on on the "flat" if you cook it properly. Use the search function at the bottom and you will find many posts concerning brisket cooks and the many different methods.
FEC120, XL BGE, UDS, Cimarron, Weber Jumbo Joe, Weber Performer Platinum (Copper)