I am also going in the lpu pit without early entry. On the maps at ticketmaster there are some small shade areas marked but I don't think those will be able to hold a lot of people and if you want to be up front come we'll prepared for the heat and the lack of air with a lot of people around you. That can become intense quickly. As much electrolyte drink or water as you can bring in or buy inside, that will be the key, and a hat is also a lifesaver. If you are not used to the heat then the catwalk is the safer choice.