YouGov are the only firm I'm aware of that claim to weight the Scottish subsamples of their GB-wide polls separately. Given the small size of those subsamples, a huge margin of error still applies (something in the region of 8%) but nevertheless it was a cause for some concern when the first YouGov subsample since the election gave Labour a modest lead. I'm relieved to say that has been reversed in the second post-election poll, which was released today: SNP 36%, Labour 31%, Conservatives 25%, Liberal Democrats 5%, UKIP 1%, BNP 1%.
Those figures are very much in line with the subsamples from the Opinium and Survation polls released on Saturday. The situation now is that there have been ten Scottish subsamples from various firms since the election, with six putting the SNP ahead, three putting Labour ahead, and one putting the Tories in front. The information we're going on is admittedly very limited, but it does look as if perhaps Labour have leapfrogged the Tories into second place, but haven't quite managed to overtake the SNP.
Elsewhere in the YouGov poll, there is plenty of other evidence of how Scottish public opinion continues to be radically different from opinion south of the border. Across Britain, Theresa May has moved back into a small lead over Jeremy Corbyn on the question of who would make the best Prime Minister, but respondents in Scotland prefer Corbyn by a near 2-1 margin. Across Britain, a narrow plurality feels that the UK is right to leave the European Union, but respondents in Scotland take the opposite view by a whopping margin of 56% to 33%.