Absolutely on the 4 day policy. I did know about that before I purchased, and to be fair, I got an authentication saying the bag was real the same day I sent in the request. If the bag was coming from the US, like I originally thought, I probably wouldn't seek another opinion on authenticity. Really, I'm just being paranoid, but the fact that it was suddenly coming from China threw me for a loop! Now I'm worried that the other authenticator will come back after the 4 days are up and say it's a really good fake.
Basically, I didn't think the 4 days would be a big deal, but now I feel like I'm scrambling! But again, I think if I had known where the bag was coming from before purchasing it, I would feel less paranoid, mainly because I would have looked for one coming from the US. I know when I signed up to sell my bag, I had to put in where I lived. It shows on my profile, though I'm sure there's a way to make it private.