CTS11962 formed 4500ypb and has a TMRCA of 3200ypb not 3000. Sure, semantics, but with aging it means everything. Additionally, if we use Michals aging methods, the TMRCA could likely be as far back as 3500ypb. Which would mean the TMRCA of L1029 is between 2000-2300ypb.
Additionally, this user vayda gathers a great deal of data, creating maps for not only L1029, but sub-cluster maps. All recent and up to date.
http://blog.vayda.pl/en/haplogroup-r...2-2018-14-new/
I belong to a founder effect within L1029 B-Western. My relation to other L1029 is between 2000-2300ypb. Additionally B-Western is most common in Germany and Poland(most diversity occurring here). As far as the Balkans, the overwhelming majority of L1029 is part of M458 B-Eastern(YP417 and downstream clades).
For instance, L1029 B-Western only makes up 20 percent or so of Bulgarian M458, which is predominantly YP417 and downstream clades. As far as the Balkans M458-B-Western is most common in Bulgaria, Romania, Macedonia, Greece. M458 reaches minimal percentages elsewhere in the Balkans, of which most belongs to M458-B-Eastern clades.
The center of B-Western is Germany and Poland with a West-East cline. Most West Slavs are predominantly part of M458 A-Western(L260 and its clades). Context is everything. It is likely Proto-Slavic, but there is no guarantee the carrier in my case(given founder effect and only another Albanian in my branch) actually spoke Slavic. Could have for all we know been a Germanized Proto-Slav that arrived with Goths. Otherwise this cluster(or mine specifically) should have a higher percentage in the Balkans.
The Goths swept through Eastern Europe on their way into the Balkans and could have likely assimilated it among other Proto-Slavic clades. Z280/Z92/YP417/YP515/I2a1b-Din are the strongest correlation with Sclavenoi and Antes migrations into the Balkans. They also make of the great deal of R1a in the Balkans outside of Bulgaria and Romania whom have equal or higher levels of M458.
If my ancestor spoke Slavic, given no one but another Albanian shared my branch, then it could have arrived atypically as a merchant. Or even a earlier Antes Mercenary for the Romans against the Huns(3-400AD). Too much pseudo science and broad generalizations are made in this field.
There is also no ancient YDNA for M458 or its subclades. Which makes most of the assumption well educated conjecture for all positions involved. The only ADNA we have for M458 are late middle age samples. This doesn't tell us anything about where they were with a definite position in the early middle ages or late iron age. Take into consideration the turbulent times of the late iron and early middle ages as well as the shifting borders and lack of national consciousness than it makes it more difficult to really know without ancient YDNA samples. One sample is not enough to really make a full conclusion let alone broad generalizations off of no ancient samples.