So I have a new Big Y match, I only have 2 matches at no known SNP differences now but the second one is of the same z63 subclade as myself. The first one, which seems to be the closer match at 229 shared novelties, is not of the same Z63 subclade as myself and the second male. He also has 1 known SNP difference with the second male, my match in the same subclade. What is that all about?
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