Rabinoz & Jack Black. 
I would not claim in any way to be a "master of Flat Earth Theory",
but I probably know more about the "Flat Earth Theory" as presented in "the Wiki", "the FAQ" and Rowbotham's "Earth is Not a Globe" than a lot of the flat earthers posting here.
Though obviously, the
administrators,
moderators and most
Flat Earth Believers know far more than I.