The important thing is that you have "ties" to a certain region. . . . .that means having grown up in, or having went to college in a certain region. While you probably have a better chance than I did of getting interviews out west (I've only been west of the mississippi once, technically---->Mayo clinic), the fact is, people may see your ap, and all they might see is "eastern seaboard" school of medicine (ES SOM), so you might still end up in the same boat as someone born and bred in the east. to make a long story short, do AI's at places where you really want to go. And since that's out west for you, that's where I'd do a couple of AI's.