The SF Matching program may be different (as well as neurosurgery), but by and large, the residency application slate is wiped clean of undergraduate numbers. None of my friends in IM, surgery, ent, ortho, derm, or radiology were asked any questions about undergraduate studies except perhaps where they went to college.
In my own experience, I interviewed only at integrated/combined plastics programs and was not asked a single question about college except where I went. I went through the match in 3/00 but I don't think this has changed very much (based on talking to current interviewess and applicants). Hope this helps.