Interesting. I did dnamydog on Moose-dog and Bat-dog and was pleased with the results.
In the video they mention the number of breeds in the various databases. I do remember looking at that. Per dnamydog, they don't test for the uncommon breeds because the odds of a mixed breed containing a breed like the Lundehund is very minimal. Instead, they test for the common breeds that are most likely to be in a mixed breed. That makes sense to me, so I didn't worry.
I had posted my results before. They were both on the mark as far as I am concerned. One thing I know people tend to forget is that not all the included breeds will show up in appearance, but may be noticeable in behaviors or personality.
As for consistency, I did my own dna through 23andme and ancestry. They came back pretty different. Ancestry puts me at 96 percent United Kingdom and French. 23andme has Portuguese, Italian, etc., in there. As my Mom did geneology, I know that the 23andme results account for a far more accurate representation of my dna makeup.