Published on 12, July, 2020
II had mine done a few months ago and it was really interesting, I'm 88% southern English with a smattering of European and 8% Iberian. To have such a high percentage in one area is quite unusual, if true, I dont' know where the Iberian link comes in, I can't see anything in the ancestors I've already traced that would suggest Iberian ancestry. 8% would mean that it's a fairly recent addition grand parents or great grandparents and they all came from southern England, more specifically Kent, Sussex and Berkshire.
My Mum had hers done and she's real mix of British, Scandinavian, Welsh and European but no Iberian, so if it's true that I have some Iberian ancestry then it dosen't come from her, we know her Welsh connection, thats her great grandad, but she's only got 4% Welsh, so you can see my quandary with 8% Iberian?
I might get it done again, with a different company and get my haplotypes done too, I think it would be really fascinating to know my deep ancestry, when my people came to Europe and by what route, are they fairly recent, or have they been here since the end of the Ice Age?
You have more biological ancestors than ancestors you receive DNA from (genetic ancestors). Gedmatch's Tier 1(have to pay) has something called 'My evil twin'. 'Generate alternate phased maternal and paternal data files. You must provide the Child's kit number, and at least one of the parents' kit numbers. Alternate phased data is the data that the parent(s) did NOT pass on to the child. It still represents DNA from the child's ancestors, but the child did not inherit that DNA.'
Sorry I didn't understand your last paragraph again, far to technical for me. Who or what are Gedmatch's Tier 1?