We now know that CTS1758 (also known as PF4091) is an important SNP immediately below PF4088. We have found several PF4088+ CTS1758- men from Big Ys and individual testing. CTS1758 is now on the FTDNA haplotree, and it's included in the new I2a-P37.2 SNP pack at YSeq.net
Click here to download our July 26, 2017 tree for I-L160.
Click here to the the post about our previous tree from June 2017.