Just wondering if anyone has simulated PDF failure and see if/what works and what doesn't?* This is specially for those who are equipped*with the IFR system?I simulated a PDF failure and the MFD quickly went to the reversionary mode and took the role of PFD but I am not getting coarse guidance from the 650xi.* All communication with the GAD 29 is intact and as I understand it, coarse guidance comes from that so I'm not sure why it is not working and*I am wondering if this is a bug or a design flaw.