Yes Nate it's mainly a question of how you define the target of a list. Saying an occasional good word about Epicurus here and there is probably not enough to consider someone an Epicurean, but again it's all in the context of how you're setting up your chart. There are many people who say a good word about him who I wouldn't dream of calling Epicurean.
To me, I don't generally start considering them Epicurean until they've at least ruled out supernatural gods, ruled out life after death, they specifically talk about pleasure as the goal and distinguish that from virtue, and say at least something in the direction of general materialism. I don't know that with Mandeville we have good documentation except for the pleasure part.