We now have time estimates for the new sub branches to our I-Y22033 overall Runciman SNP (this prior post refers).
They come from the new YFull.com tree, version 5.03.
YFull also provide a different name for the Alexander of Meikle Pinkerton SNP branch - I-A11393, compared to FTDNA's I-A11400.
overall I-Y22033 has moved back 50 years from 550 to 600 ybp (years before present, where present = 1950)
the above with the known information re the lineages' most distant
known ancestors and the most recent common ancestor (MRCA) between the
pairs on the sub branches:
back to the STR results to 67 markers for David (R-1) and Jerald (R-2)
the 4th cousins once removed sharing I-A11399, they share 66 of the 67
tested markers, differing only on DYS481 (24 vs 25 repeats). The Time
Predictor at FTDNA shows a 71% probability of them sharing a common
ancestor within 6 generations given it was known they did not share an
ancestor within 4 generations.