Dear Grand Master, 1) I intended to buy a EC Penthouse. As it has 2 storey, does the theory of Xuan Kong Flying star works for that? Since it had overlapping of some area with the open terrace, how can we analysis in this case? 2) I intend to take up your online course on XKFS, can i know in more detail how is the course taken? Will we be having hardcopy of notes or softcopy? Any interaction? How will it be done? Thanks a lot