>>17796242
Somewhat surprisingly, Russia_Afanasievo offers better distances than Russia_Samara_EBA_Yamnaya.

To make sense of this, first understand that it doesn't suggest Afanasievo went into Iran and the Levant. Russia_Afanasievo has samples of pure WSHs located in a different geographical location, and they are unadmixed due to their rapid migration. The reason they can offer better distances is due to genetic variation within WSHs. WSHs existed on a cline between the CLV and Ukraine_N. I would assume Russia_Afanasievo offers a slightly better position on the cline for modeling certain populations.