I have read threads where candidates are talking about sending in Sr. grades. My first semester just ended and I earned A's in all my classes. However, with the start of the second semester, I picked up a few more difficult classes and the classes that I am already in seem to be getting harder. I, by no means, intend to slack off, but the reality is that A's this second semester probably won't come as easily. I already accepted my offer of appointment. How poorly would I have to do in order to have my appointment recinded? For the record, I guess this question is more or less out of curiosity and not full-fledged concern. Thanks.