bibliophile,
I really never knew how medical school admission's boards adjusted the GPA based on the undergraduate school someone attended. Your information is pretty helpful as it is the first time I've heard something specific about a school adjusting GPA based on the college (as Harvard told you they would do). I am not sure if other schools would handle it the same way, but it seems reasonable. I really have nothing to add to what you've already heard.
I believe a high MCAT score definitely will help. It's hard to say how much, but I found an
interesting discussion on the topic in another forum, referring to the LizzyM score:
I came up with this about a year ago as a way to compare an applicant's stats with a schools average stats. (BTW, median is one way of measuring "average", which is a measure of central tendency. Mean and mode are other ways to describe "average").
Your Lizzy score: your gpa(10)+ MCAT.
A school's LizzyM score (M for medical ) avg gpa(10) + MCAT - 1.
If school that has a LizzyM score greater than your Lizzy score is a "reach". Most schools on your list should have LizzyM scores that are equal or less than your Lizzy score.
I think it is a nice, simple way to estimate how much an MCAT score will affect your chances of getting an interview. I'm not sure how accurate it is overall, but it is simple and logical.
I appreciate your comments on what your pre-med advisor suggested and about the trends in people taking a year before going to medical school. I'm a bit out of touch as it's been over 15 years since I've applied to medical school. The reason I said that few experiences will make much difference in your chances of getting accepted is because (at least when I applied) most solid applicants will also have similar experience. I know almost everyone did volunteer work at a hospital when I was applying. You pretty much had to do it or else it might stand out as to why you didn't do it. The same thing with having some research experience.
As I said before, the only experience which I think would make a major impact is if you are lucky enough to impress someone who happens to be on an admission's board, or who is close friends with someone on the admission's board. These aren't the kinds of things you can really seek out. Work at a hospital will almost always come in handy, but when I was in college, it wasn't that easy to find good opportunities in a hospital setting.