FTDNA's term Triangulate is misleading and should be changed, IMO. All the ICW tells you is that those people have matching segments with you and the person you choose. It, in NO WAY, suggests that you have the same half-identical region. If two people you choose do match on the same chromosome, it can guide you to asking them if they show a match with each other in that locale. Thus you can determine if they share an HIR. So the people you see are your matches and the person with whom you are comparing those others do have a match with everyone listed. If you see some on the same area of the same chromosome and you ask each who match in that locale if they match each other and they do, then there is a common ancestor among all of you who match in that area. If the people do not match each other on their own chromosome browser, one of them is from your mom's side and one from your dad's. Maybe someday FTDNA will let us actually see where our matches match each other so we can really call it triangulation! IMO, 1 cM is useless for what we generally do. E -----Original Message----- From: autosomal-dna-bounces@rootsweb.com [mailto:autosomal-dna-bounces@rootsweb.com] On Behalf Of Christina Hunt Sent: Monday, November 04, 2013 9:22 AM To: autosomal-dna@rootsweb.com Subject: [AUTOSOMAL-DNA] ICW - and small segments I am not sure how to think about the ICW feature. When I use it and then compare to my chromosome browser or spreadsheet, I get no matching chromosomes unless I look at 1 cm. Can that be right? It doesn't seem a large enough segment to mean anything. If I compare only larger matches I find them on a different chromosome with fewer of the ICW matches FF gives me. Same with Gedmatch. Can someone explain if these are really matches? Chris ______________________________ For answers to Frequently Asked Questions about mailing lists, please see: http://dgmweb.net/MailingListFAQs.html ------------------------------- To unsubscribe from the list, please send an email to AUTOSOMAL-DNA-request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject and the body of the message