Should I Retake?

Test Preparation
1

<p>I earned a 760 on the Chem SATII, which I know is a great score, but the thing is, I only intended to take it as a practice test, as I didn't study for it, and at the time of taking the test, I didn't even know two of the subjects that were on it. Is there any significant difference between, say, a 760 and an 800? And if I retook it, would having both scores look bad?</p>