I've just done the calculations (for those interested, the figures are at BBC News: Election Result: West of Scotland) and if the challenge is successful then it will totally reverse the numbers game in the Scottish Parliament. The top-up list seats in the West of Scotland region would remain the same - 4 SNP, 2 Conservatives, 1 Lib Dem (although the order of allocation would change slightly), so the effect would be to remove one seat from the overall SNP total and add it to the Labour total - giving Labour a one seat lead over the SNP (and also making some of the coalition numbers even tighter).
An SNP source ...described the potential action as "sour grapes".On Thursday night the SNP were talking a lot about how damaging the voting problems had been. Now that those voting problems may have benefited them, they're labelling those who are seeking verification "sore losers". Why am I so reminded of Florida in 2000?