Iain, Are you aware of Byrne 236891 whose results came in the other day? I had them sent to Mike in the expectation that they would be uploaded to the L21 forum where they would become available to all researchers, but I don't know if that has occurred yet. BritainsDNA says his terminal SNP is S660. He fits the 25-10-145 pattern that about ten of my Byrne M222s have. I can have his .txt file sent directly to you if you prefer. Paul