Hopefully not, agreed. But we've seen so many people put off busting and then regret that they didn't hit it early. My suggestion -- Take a good-sized bunch of the ones you have now, while you're waiting for the fresh ones you order today to arrive. Worst that can happen is that the old ones have no effect; best is that you get a head start, just in case. Or, if they weren't shadows, maybe you get in a good preventive bust.
Have more coming today. I've never done this so kind of nervous. I'm hoping it just makes me drowsy...we'll see.