I was an August MCATer last year, and I had the bulk of my interviews in February. That was with all files complete when scores came out. I suppose if you're a stellar candidate, and apply super early, and don't have to wait for August scores, and don't have any snafus with transcripts and/or LORs, then it could work to leave the country. But my experience with contacting schools to ask for consideration in scheduling interviews early for my convenience (i.e. another school offered me an interview and since I'm going to be in your neighborhood, if you're considering granting me an interview, etc. etc.) was that most schools were not very cooperative. A few were, but they were the exceptions. It never hurts to ask, though. Best of luck! 🙂