What I really want to know is if its worthwhile doing tests for less than 37 markers. The reason is , if I present my fdtna test results for only 12 markers and place them into a Ydna predictor it gives me these results
K2 (T) =>54% N-E.Europe =>18% E3b-M183 =>13% I-M253 =>8% O =>4%

Granted , ftdna have more accurate results. But lets say I go for a 25 marker, my results are
N-E.Europe =>55% K2 (T) =>39% E3b-M183 =>3% Q-M242-Group1 =>3%

If I then go to ......as an example 27 markers, I get
K2 (T) =>89% N-E.Europe =>5% Fx =>4% ...........this clearly indicated DYS460 and Gata-H4 are very important

on to 37 markers and its
K2 (T) =>99%

My point is that the 25 marker ( and neither is the 12 one) is not conclusivess, yet T Hg is the first in line.

Since some only do 12 markers, is it enough to indicate which is your HG, are these predictors reliable?

..................

If I use the russian predicator, then this is what I get

12 markers = N Haplogroup Probability
1 T1b-L131 99%

25 markers = N Haplogroup Probability
1 T1b-L131 100%

27 markers = N Haplogroup Probability
1 T1b-L131 100%

37 markers = N Haplogroup Probability
1 T1b-L131 100%

I only become T1b with the 11th marker DYS392 which is 13 , prior to that marker I am either I-M253 or F-M89 in HG type


lastly ........Is it worthwhile in an upgrade from 37 to 67 markers with my haplotype