Help! 153, 162 Addendum?

[denada!]

There is no significant reason for the 9 point difference. I studied a ton for the first one, got nervous and failed miserably.. The second time I didn't study, and went into the test with a different attitude. I have already submitted my applications and can't decide if I should address this in an addendum. Thoughts?

[CanadianWolf]

Just submit the first three sentences of your post which started this thread.