Do these R1a mutations mean anything?

Hi,
Album here: https://imgur.com/a/KDKubnT

I am presently researching my haplogroup subclade with ftdna and DNA Chron. Presently confirmed R1a, R-Z2124. And later hopefully a YSEQ panel.

However presently I have these mutations via DNA chron and wonder about my theory.

One mutation is older from Kryzgstan (1250ybp corresponding to the Kyrgyz Khaganate), one slightly more recent from Tatarstan, and the most recent shared with an R-FT353685 sample from Bashkortostan area, is only about 350ybp.

It seems this supports my theory of lipka tatar origin and am wondering if anyone has more experience with these tools?

The haplogroups which DNA Chron links to these mutations are:

https://www.yfull.com/tree/R-FT353685/
https://www.yfull.com/tree/R-YP1556/
https://www.yfull.com/tree/R-Z6405/

https://imgur.com/a/KDKubnT

Though none is a defining SNP it seems, they seem to be suggesting an origin regardless.

Thank you