>>2699545https://www.exploreyourdna.com/article/59/how-to-use-vahaduo-with-g25-coordinates-a-step-by-step-guideThe coordinates are from population census studies and archaeogenetic studies (If you're using davidskis sets), personal conglomerations of g25 sets (if ur using Moriopolous), or just simulations of theoretical datapoints (if ur using any calculator elsewhere).
Scaled coordinates in g25 is about as accurate as Fst & F2 stats (because it's newer than admixtools duh).
It also has a certain dimension called the "balto-slavic dimension" that davidski implemented to calculate the correct amount of steppe/hg/farmer admixture and genetic distance in Slavs compared to Western Europe.
The reason he did this is because Orcadians/Scots have around the same Steppe admixture as Polish people but they are extremely genetically distant from one another (Also because Davidski is Polish I imagine it's for a personal reason).