Well, for the interview I had last month, the school sent the interview invitation at most two days after they received my secondary, and I think I got the letter about a week after I mailed the secondary.
For the interview I have coming up in a couple of weeks, I still have yet to submit the secondary!! 😱 😀 😱
However, there are a bunch of schools I still haven't heard anything from...although I was an August MCAT taker...