Forget the vinegar and butt loads of water before test. Sit down for a few hours and read, read, read. Exercise like crazy for the next 3-4 days. Then load up on creatine and eat red meat for 2-3 days before test. Stop exercising when you start creatine. Do a practice run at home 1-2 days prior to the real test. Follow the FAITHFUL dilution method mentioned in the sticky. I think you have a chance to pass if you do your homework. Keep us posted.