E-V13 - Theories on its Origin and New Data

[TheBane]

For some E-V13 branches, it's already verified that they moved from the Balkans outwards during this period: https://discover.familytreedna.com/y-dna/E-BY15397/tree

As far as I can see TMRCAs of all BY15397 subbranches predate the Naissus sample, so I don't see how this example verifies your statement.

There can be no doubt that many E-V13 branches are related to South Thracians. Note his branch and position.

Ok, probably there are some such branches which went North. But I do not recognize it being the case with this particular branch.