Any of the Lassiter group who are R1b1a2 or R1b1a2a1a1a4 and who have marker # 568 = 10 may be interested to take the SNP test for Z346, and to join the U106 research group at this address:
http://www.familytreedna.com/public/U106/default.aspx?section=ysnpThat test would confirm that you belong to a small number of families who have that same marker.