Previously, my Ancestry.com mtDNA testing revealed a heteroplasmic situation at
16090 in the HVR1 region and they typed me as 16090Y and in the haplogroup J.

My younger brother's Ancestry.com mtDNA testing did not reveal the heteroplasmy
and he was typed as 16090T and also in the Haplogroup J.

I just received my Full mtDNA results from FamilytreeDNA.com and they typed me
as 16090C and in the haplogroup J1c.

I understand from previous posts that the FamilyTreeDNA testing is the more
accurate, but I find it quite disturbing to have such a variance in the 16090
call. And yes, we have the same mother.

Any insights, or should my brother have his mtDNA tested with FamilyTreeDNA?

Sally