Role of recent admixture in last 1500 years

There's actually seven sets of Tuscan samples: TSI2 (no West African), TSI23 (no West African), TSI2A (very small amount of West African), TSI2B (no West African), TSI3 (largest amount of West African of any European sample), TSI4 (second largest amount of West African among European samples), TSI70 (small amount of West African similar to those found in SICIL30 and SPANI27 samples)
 
First of all TSI70 has Masaai like component which is not west african. Then Admixture looks very noisy because South Euros are also scoring Siberian for example.
 
TSI70 only has a small amount of brownish-orange, the color used to label the West African component on the graph. The Masaai component is labelled darker brown on the graph.

There is a very small component in a couple of the Tuscan samples (TSI23 & TSI2B) which also occurs in small amounts among Bantus, Iranians and Turks. It is labelled white on the graph and located at the bottom, but it is not clear what exactly is this supposed to represent.
 
The analysis looks extremely noisy and not very reliable. Tuscans and other South Europeans are scoring more Siberian/East Asian than West African/Masaai. So what are we arguing about?
 
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