What’s going on with the I1 tree at this site? A bunch of snps Z61, Z62, Z141 are put in their tree, but I don’t believe FTDNA or anyone else has made them available for public purchase? So we only have reports of 1000 Genomes that they exist and are where suggested? On other hand Z131 which is in the catalog at FTDNA is not in the tree, nor is DF29 (Z131+ has not been found publically). 1000 Genomes reports existence of these snps just as they do the previous mentioned ones. What’s the consistent rule, IF ANY, governing the ISOGG tree construction?