Roger the Skiffler, Since 1945 only one ONE occasion (1964) Scottish MPs have turned what would have been a Conservative government into a Labour one. The Tory majority without Scottish votes would have been just one MP (280 vs 279), and as such useless in practice. The Labour government, with an almost equally feeble majority of 4, lasted just 18 months and a Tory one would probably have collapsed even faster.

- on ONE occasion (the second of the two 1974 elections) Scottish MPs gave Labour a wafer-thin majority (319 vs 316) they wouldn't have had from the rest of the UK alone, although they'd still have been the largest party and able to command a majority in a pact with the Liberals, as they eventually did in reality.

- and on ONE occasion (2010) the presence of Scottish MPs has deprived the Conservatives of an outright majority, although the Conservatives ended up in control of the government anyway in coalition with the Lib Dems when Labour refused to co-operate with other parties in a "rainbow alliance".

- which means that for 65 of the last 67 years, Scottish MPs as an entity have had no practical influence over the composition of the UK government. From a high of 72 MPs in 1983, Scotland's representation will by 2015 have decreased to 52, substantially reducing any future possibility of affecting a change.

The simple reality of the matter, established indisputably and unambiguously by these stats, is that England and the rest of the UK are and always have been perfectly capable of electing a Labour government if they want one, whatever Scotland does.

The truth is that Labour doesn't need Scottish MPs, and an independent Scotland would NOT give the Tories a permanent majority in the remnant UK. Those are the facts, and voters should be deeply mistrustful of anyone who tells them anything else.