Southern Pole Championship Question

Does anyone know what the typical pole diameter that is used at the Southern Pole Championship? Some competitions have given the size pole they are using and I have searched the site but found no such answer. Also has anyone competed before, what type of flooring is it? It appears grooved somewhat do the the squares. I am trying to determine if I want to do my rountine in heels or not. I had a slip-up before due to square grooves and would hate for that to happen again!! Thanks!