I think you'll find that you still have plenty of things to do -- helping any of your sisters that need it. I also think that you will still meet far more PNM's than you might have thought that you would have met. Like everyone's already said, being a floater is not a bad thing. You will be able to notice things about the PNM's from a different vantage point, and can contribute this information during discussions. Think of yourself as an essential part of your chapter's recruitment efforts. Floater or not, that is what you are.