got the globe for ya brian, hope u get better.
Zombiequeen there will be 5 separate formats: SPL measured at the headrest, Park and Pound SPL measured 6ft away from your vehicle, Sound Quality based off the official MECA SQ disc which I the judge will have, Install judging how well your install is and how well you know it, and RTA. If you just want to do loudness then stick to SPL and Park and Pound. Classes are by subwoofer cone area and Fusing on the amp or 18" from the amp and closer. for instance if you have 100 amp fuse and 2 12s the formula says 100x10 + 113x2 = 1226 which would be Street 3 or modified 3