From what I understand, a 709 ride is basically like taking the practical test for your license and appropriate ratings over again. I would personally study a practical test preparation book (I think ASA makes some for every license) as well as the written test book for your license. It would be a good idea to hire an instructor to get you up to practical test standards on all of the manuevers required for your license, or at least practice the manuevers on your own to ensure you're up to practical test standards. I would think with this attack you should be covered for anything they could throw at you. Good luck!