When I remove the Roman samples, pretty similar to your result:
Target: Mr.G_scaled
Distance: 0.0166% / 0.01659253
34.9 Germanic
24.7 Slavic
23.2 Paleo-Balkan
17.2 Celtic
With Roman added back:
Target: Mr.G_scaled
Distance: 0.0158% / 0.01581272
38.9 Germanic
23.3 Slavic
16.4 Celtic
13.6 Paleo-Balkan
7.8 Roman

