Sam What is the "big issue" about unphased data? As always, my reference is to genealogy. I can see where it would help, some, to know if a match was on my Dad or Mom's side, but SURNAMES and geography can help there, too. And even if I knew which parent my match was on, I still wouldn't know which grandparent. Jim - Sent from my iPhone - FaceTime! On Jan 6, 2012, at 12:43 PM, Sam Eaton <[email protected]> wrote: > Larry hit the nail smack dab on the head. > > One thing to remember is that we are dealing with unphased data. From observing RAW DATA in my FF project, this is a big issue. > > ... > > Sam