In contrast to the recent findings from YouGov, the latest Scottish sub-sample from ComRes is the third in a row to show the SNP ahead of Labour. However, both parties have lost support, with Labour slipping the furthest. Here are the full figures -
SNP 27% (-6)
Labour 23% (-8)
Liberal Democrats 21% (+9)
Conservatives 18% (-1)
Others 10% (+5)
As omitting it earned me a rebuke last time round, I'll revert to my normal disclaimer that Scottish sub-samples of UK-wide polls have huge margins of error and may not be properly weighted.
The UK-wide figures also provide some indirect cheer for the SNP, in the sense that "Brown Bounce III" (if it ever existed) appears to have stalled. The evidence from recent times is that the SNP tend to prosper in Scotland when Labour are struggling across the UK.