doing same test over?

i guess i need to take the mcat over in august since i'm on two waitlists and my chances are getting smaller with each day. i wondered, however, if retaking the same diags that i took a year ago will be any indication of how much i know. i still remember the verbal passage topics, so i feel like i'm not getting a good picture of how well i'm doing.

i've got all the princeton review practive stuff, aamc 1-5, and have kap test 1-5 (but no answers for the kap tests). woudl somone be willing ot sell me thier kaplan answers, aamc 6 and/or any other practice material you may have? i sure woudl appreciate it. please PM me. good luck to you all!