South Asian is a hybrid component in any sense. in some calculators Gedrosia gets broken up into "South Asian and some ither components. So I assume that this "South Asian" is actually a portion of Gedrosia. Mal'ta did also have this "South Asian" admixture which later turned out as Gedrosia. And some of the "European" in the Mal'ta paper turned out as Caucasus.
As seen on results on Iranians in Dodecad v3 (~10% South Asian) vs k12b(30% Gedrosia) respectively. So it is fit to imagine the actual Gedrosia frequency three times higher.
thats roughly 21% Gedrosia.
Itwill beinteresting to see the Yamna DNA in k12b.
I agree that the 'South Asian' is only one part of Gedrosia. The rest is probably hidden within 'West Asian'. If Gedrosia is exactly 'South Asian' + 'West Asian' (unlikely it is a perfect match though), the Yamna samples would have 22 to 29% of Gedrosian. 25% is a reasonable average, which corresponds to what is found in eastern Turkey, Armenia, Georgia and the Northeast Caucasus.
English and Scottish people have 11% to 13% of Gedrosian respectively, presumably about half of the Yamna people. That makes sense since English people have 40% of Yamna DNA, and Scottish people 50% according to Haak et al. 2015.
A high percentage of R1b isn't always a sign of high Yamna ancestry as demonstrated by the case of the Spaniards, and the Basques. Spaniards have only 25 to 30% of Yamna DNA despite having similar R1b levels as British people. Their Gedrosia ranges from 5% (Galicia) to 7.5% (Catalonia). The Basques reach 9%. So there is a correlation to the total R1b percentage in Iberia too, but the ratio isn't the same as in Britain because R1b arrived later and in a more diluted form in Iberia. At equal R1b frequency, the Spanish Gedrosian admixture is half that of the British, and so is their total Yamna admixture. However one looks at it, the Gedrosia to Yamna ratio remains stable though, about 1:4. This means that Yamna people did indeed have approximately 25% of Gedrosian admixture. Everything checks out.