I think Lorraine may take a larger bite and if she can't taste the components then she takes smaller individual bites of the filling, frosting, cake, etc. to really look for the requirements. Personally, I don't care how they bite or taste and since they don't film everything we don't know for sure if Duff and Nancy aren't taking the same small bites. Perhaps it's Lorraine's teeth that make her bites appear small. Not picking on her but it's obvious her teeth are larger than Duff's tiny teeth.
As a contestant, Jason was talented and funny. He may still be talented but he is no longer funny. His performance no longer seems about baking talent but outfits and corny lines. He just needs to get back to being him.
Clinton, I like and if they really want to make me happy they can have an episode with Carla and Michael as guest judges. I loved The Chew.