I did the Harcourt-Essen iodine clock (a.k.a. the most stressful, painful thing I've ever done). My teacher thinks I've got an A, which is just as well given how dreadful my exams are going to wind up being. Need an A in Biology and a B in Chemistry to get to where I want to go, though even that could prove difficult, especially given my overall B grade last year.
Yours,
Grey