I believe I will get a 4 because I seemed to do well on the majority of the test, but some problems were hard and I had to resort to guessing (on the free response section of course)
The Terminator after a long day of hard work
Advice about next year:
Even though homework is "optional," try to do some on the topics you are weak on. If you don't understand something right away, its ok. Don't worry about the concept as much as actual memorization of the process first. Understanding of the concept will come later.