Also, when you're trying to find your SSF, you have to walk the same path so that you'll get the same Dust Cloud. If you get a Dust cloud, but you didn't hit your seed, that Dust Cloud is a sign that you didn't get your seed. So if you see it again, you can just turn off and try again. Also, since you have a chance to get items while finding your SSF, if you get an item with 0 Chatters, then next time you hit your seed, try 1 chatter and see if you get an item or pokemon. If you get another item, do 2 chatters, and so on, until you get a pokemon.