After a delay of a few days, the datasets for the new GB-wide BMG poll have finally appeared. In spite of the Conservatives holding a narrow lead across Britain (unusual in polls since June 8th), we once again see the now-familiar sight of Colonel Davidson's Scottish Tories in third place in the Scottish subsample...
Labour 44%, SNP 27%, Conservatives 18%, Liberal Democrats 8%, Greens 2%
Obviously the sizeable Labour lead is a matter of some concern, but individual subsamples are often wildly unreliable, and it remains the case that the SNP have held the lead in the slight majority of the fifteen subsamples published since the election. The SNP have been ahead in eight, Labour in six, and the Tories in one. The SNP have also been ahead of Labour in nine of the fifteen subsamples.
There isn't much doubt that the SNP remained competitive, and probably held the lead, in the immediate aftermath of the election. The question now is whether that remains the case, or whether Labour's position has quietly strengthened during the second half of summer, which has seen very little polling of any sort.