This is a 2 round panel that pinpoints the terminal SNP below DF19. This panel is suggested when you have tested DF19+ or if you have a clear prediction for this haplogroup according to your Y-STR results.

In the first round 3 important SNPs will be tested to find out the main category:
DF88
S4268
S17075

In the second round we work down the branches iteratively until we have found your position on the given tree.

The test is completed when the unique phylogenetic position on the tree has been determined.

See this tree diagram to understand the groupings in this panel: