Not sure I understand this thread. While I only have one 392=15 and one 389/2=28 (not the same person), all the subgroupings of my 47 NWIs have off-modal STR values in common. My Sligo group has 391=24, 460=12/13, and 425=0 (a recLOH)in common. My Donegal group is 464= 15 16 16 16, 459=16, CDYb=40, and 425=11. My Monaghan group has 391=10, CDYb=38, and 534=15. But isn't this the way everyone divides large clusters? See www.worldfamilies.net/surnames/byrne/results Paul