Hello Tracy, The genetic genealogy community is moving toward the NIST (National Institute of Standards and Technology) / ISOGG (International Society of Genetic Genealogy) standard: http://www.isogg.org/ The number of conversion factors needed to convert from one lab to another has steadily gone down and will continue to do so. Which standard you use, now, depends in part what you're doing. I admin six projects at FTDNA, so it's a slam dunk that I use FTDNA standards and convert results from other labs to it. In your case, as you have been using DNA-Heritage standards, I would continue to do so because they are already NIST/ISOGG compliant, as least for the markers given in this table at SMGF: http://www.smgf.org/ychromosome/marker_standards.jspx Be careful with regard to when tests were taken. Reporting standards have changed over time at the same lab, as indicated on this page of conversion factors: http://www.ysearch.org/conversion_page.asp If you want to delve more deeply into existing online discussions of this issue, I would recommend searching the archive of GENEALOGY-DNA: http://lists.rootsweb.ancestry.com/index/other/DNA/GENEALOGY-DNA.html Diana > -----Original Message----- > From: y-dna-projects-bounces@rootsweb.com [mailto:y-dna-projects- > bounces@rootsweb.com] On Behalf Of Tracy Denny > Sent: Tuesday, September 28, 2010 12:35 PM > To: y-dna-projects@rootsweb.com > Subject: [Y-DNA-projects] Proper Nomenclature - one for the pros. > > Hi All, > > I have been taking care of the spreadsheets for a small surname Y-DNA project. I > have no problem with what I am doing; making values match between Heritage DNA & > FTDNA (and others). I have all the correction numbers necc. to do this. At the current > time I have been converting them to Heritage values, as that is the way it has been > done since the project started. We are currently advising new members to test with > FTDNA, trying to eliminate some of the problems that crop up. We can also get more > markers tested this way, since we are largely a R1b1b2 type group. Soon, I will > convert the DYS values in question to the FTDNA format... depending on how my > question is answered. It would save me a great deal of time if one of the pro admins. > could help me with the amswer/s. > > Ques.: In order for the various databases to jive, what is the correct nomenclature to > use. Is FTDNA using the proper values or is this a huge mess between the various test > vendors & databases? If this has been discussed in detail before, pointing me to a > thread or web link would be fine. > > Thanks! > > Tracy W. Denny (Denney) > > > ------------------------------- > To unsubscribe from the list, please send an email to Y-DNA-PROJECTS- > request@rootsweb.com with the word 'unsubscribe' without the quotes in the subject > and the body of the message