Common ancestors

[Phoenix]

Now that we have 64 tags, I'm revisiting all my common ancestors and marking the owners as active/inactive and indicating whether they have shared matches.

Some matches no longer have a common ancestor - I assume they have linked a different part of their tree to themselves.

But others now link to a different part of my tree. Wierdly, I have two sets of Thrulines with one segment of DNA. Some link to one part of my tree, others to another, but a couple of generations down they both link to the same surname... which isn't in my tree. It makes me wonder whether the real link is actually somewhere else.

Anyway, so much seems to have changed that the excercise is definitely worth doing.

BTW do Protools work for matches with less than 20cM shared DNA?