This might be valuable to others. I requested that FTDNA add S2078 to the catalog for the Z63 sector. S2078 occurs with robust frequency based on Big Y and Chromo2 results. Unfortunately, FTNDA inverted the consensus and reference alleles. This caused everyone who tested to get the opposite result, that is to say those who were positive were showing negative and vice versa. This naturally created much confusion. I think the take away is to audit newly requested SNP results with care, if being done at FTDNA, in case this is not an one time problem. As stated in the title, PR683 which shows to be immediately downstream of S2078 is now available and which has divided some Big Y kits already. Paul