We can assume that, in an STV election, the minor parties (Conservative, Liberal, SNP, etc) would be represented among the seven MPs elected.
So, in the Tom Harris world (Glasgow-centric as it clearly must be), the SNP (current Scottish government and 7 out of 59 MPs and even one of the Glasgow MPs - never mind 5 out of the 17 MSPs) and the Lib-Dems (12 out of 59 MPs and Labour's quislings in the last Scottish Executive) are "minor parties"? Okay, yes, the Tories are ...
I can't be arrsed collating the vote figures but Labour's 6 out of 7 Glasgow MPs (especially remembering that one of them was unopposed, well, by anybody serious, at the last General Election) isn't looking like a safe bet this time round.
Just for info:
How Tom Harris voted on key issues since 2001:
Voted moderately against a transparent Parliament.
Voted very strongly for introducing ID cards.
Voted strongly for introducing student top-up fees.
Voted very strongly for Labour's anti-terrorism laws.
Voted very strongly for the Iraq war.
Voted very strongly against an investigation into the Iraq war.
Voted very strongly for replacing Trident.
And finally, a view on weegie politics via the WSJ.