Judging by their twitter accounts chefs have to stop tweeting while they are filming. Everyone has a big gap in their posts between mid-May and early July '13. Then, many of them have a smaller one week gap between Oct 3/4 to Oct 9/10. I checked and counted about 8 chefs who went dark that week, including Nina, Shirley, Carlos, Nick, Louis, Brian, Stephanie, and Sara. Carrie continued to tweet. So either there is an episode of LCK in Maui or Louis appears to emerge as the champ. Or, maybe he loses in the last round but is invited to Hawaii because of his excellent performance. In short, twitter doesn't shed any light about who the finalists are! Dang.