pitt does it in a weird way. i believe they only have 3-4 interview sessions (maybe a few more), but each one is BIG!!!! roughly like 80+ people at a time (at least the time i went it was around that much). other schools, they sometimes they have the cap, but they will use the DAT/GPA as guidelines. If a lot of people of high gpa and DAT, they might push their minimum higher just to make the number more manageable. For the most part, you can assume that it's 1:5 or 1:10 for every seat:interview.