Well, Univ. of Michigan just emailed me today. I thought it was wierd that they said they did not want letters of rec with their secondary. But then just today, I got an email that told me to send in 3 letters of rec. One science, one non, and one of my choice. Can anyone tell me if Michigan would rather have a letter of rec from a TA who knows me better, a professor who has years of research but probably did not write as strong of a letter, or just some other type? Are they mainly research oriented or primary care? Thanks!