The new version is good. It contains the changes I requested.I approve.
However, I hope you will do another analysis when you have more data. Because I'm still half-convinced that finnish people should have higher Gf. The only reason why you find this result is because you have weighted the data set. But the N for WAIS matrices subtest is not small. Generally, I think sampling error is a threat when N is small or very small. That's not the case in your data, so I don't think sampling error is the explanation for the result. The only way to answer this question is to do a follow-up on additional data, and ideally, based on still other test/subtests of Gf type.
Furthermore, I would like you to correct this error :
To arrive at a single best estimate, we performed a meta-analysis (N-weighted) based both data sets.
The color text for the reference Salmela 2011 is in grey while it should be in black.
And finally, I want to say I don't necessarily like the use of google docs for your drafts. When you modify the draft, the old version(s) is(are) not visible anymore due to the modification/deletion. I prefer to upload all my versions (1, 2, 3, 4, etc.) in OSF, so that everyone can see the progression of my work. I know this journal says nothing about it, but that's my suggestion.