Sorry for quoting myself, but I've found it reported in the National -
"The polling model also indicated that the SNP could be on for a landslide 55 Scottish seats, one short of their historic 2015 result which saw them win 56 of Scotland’s 59 Westminster constituencies.
The figures were calculated by pollster Mark McGeoghegan using Britain Elects’ model “Britain Predicts”.
After inputting the average of all polls in Scotland since May, McGeoghegan found that the SNP were predicted to win 55 Scottish seats, Labour two, the LibDems two, and the Tories none."
Double malts all round...