We finally have some useful SNPs to divide the very large Dinaric haplogroup. One of the most important is S17250 and it is now available for testing as an individual SNP at FTDNA. You can also order S17250 from Thomas Krahn's http://www.yseq.net/ and no prior testing is required at this company. And S17250 is included as part of the Chromo2 test at BritainsDNA http://www.britainsdna.com/ Around 12 Dinarics have tested S17250 as part of Big Y or at YSEQ. All 5 Dinaric-South men were S17250+, and some Dinaric-North men were S17250+ and other Dinaric-North men were S17250-. The division between Dinaric-South and Dinaric-North is based on two STR markers and this division is not always a perfect reflection of genetic history. Dinarics belong to I-CTS5966 which is part of I-L621, I-M423, and I-P37 and they have been known by many other haplogroup designations over the years. Thanks to those Dinarics who have done Big Y or tested at YSEQ, and thanks to Larry Mayka of the Polish Project and Zdenko Markovic of the I2a project for analyzing the data. Please see our new Dinaric tree here http://i2aproject.blogspot.com/2014/05/important-new-snps-for-dinarics.htmland please feel free to contact me for the most recent advice before you order S17250 or any other test. Bernie Cullen one of the volunteer administrators, I2a Project