I need the opinion of someone who has written the SAT physics subject test. Do you think a raw score of 68 can convert to a 800 scaled score? SparkNotes' website shows that anything 66 or higher can possibly be an 800. Kaplan's 05-06 physics prep book shows that anything around 63 can possibly be an 800. Are those estimations really accurate? They seem too generous. I don't want to wait three weeks for my score so can someone advise me on this issue? 