I am signed up to take the General and Subject tests in December. I have a background in Aerospace with a year and a half experience and an average GPA at best. I have only gone through most of one practice subject test and am feeling concerned that I will not be up to my full potential by test time. My question is, should I take the test and possibly do really bad and have to reapply next year or wait a year when I know I will do better? My concern is that the first test will bar me from the school even if I do better the second time. Are multiple subject tests averaged? Any info in this area would be greatly appreciated.