Dear Genners, First of all I would like to thank all the DNA-Genners that kindly answered my questions. I think I understand it all much better now.
Just a comment about FamilyTreeDNA: I did not write to them. I only wrote to Jewishgen DNA group because i thought my question could be of common interest for people who not understand the the technical details. I complained about the people to whom I have very close match, but who not answer my mails.
