FB PM matching in Seattle vs Bay Area

I am interviewing for PM role with FB and prefer to stay in Seattle rather than move. I’m told you can either pick the Generalist route for onsite (only available for Menlo Park), or go for the “Specialist” route if I prefer Seattle. Questions: 1. if I take the generalist route, can I still be matched later with Seattle teams alongside the MP teams? Is there usually additional interviews, etc.? Or should I just stick to Seattle and hope for the best. 2. I am thinking about Ads and Profiles teams in Seattle, any insights into how they are in terms of org, scope and opportunity for PM? any other inside scoops about Seattle vs MP for PM role are welcome of course.