yup , i think it's a fabulous idea. physics hasn't changed that much in the last 4 or so years and more importantly what the mcat expects you to know is derived from the exact same physics that you did in AP. so why not get extra help for the areas you don't understand. it's the exact same thing as reading a review book or looking back at a textbook or sitting through a prep course to go over the review material. i would just recommend that you read a review book too just for the format familiarity and also do passages on your own as, though i'm not familiar with AP physics, i suspect AP physics isn't all that passage based. good luck.