Pick up a pair of goggles and gloves, all the extras he's brought have been fireproofed for today's training. He's also got a bunch of his old brooms lined up, they're all pro quality but old versions of current makes. He's not going to be offended if you don't take one, he'd rather you be comfortable in the air.
As the fliers make their rounds, the hoops will move erratically to change the flight route and soon start spitting plumes of smoke or setting themselves on fire. Once in a while a hoop will suddenly throw a shield up so be careful not to fly smack into it. If you ask for it early he's even willing to unleash the angry flaming bludgers (and has bats on hand to come help you out of a tight spot it if gets too wild).