You will note that I haven't looked at the SNP seats. With all six at 1/100 shots, I have better things to do with my time. Sorry about that.
Then there's the question what to do about the Lib Dem collapse in the polls. I hummed and hawed about this. In the end, I decided that in seats which the Lib Dems did not hold, they would lose three quarters of their 2010 vote, with Labour, Others and abstentions evenly sharing those votes that were not accounted for by the SNP and the Lib Dems.