The single seat districts should still be elected with second preference voting, eliminating from the party with the least votes to the most votes until the threshold in the first round, and until 50% or the last party standing in the second round.

100 seats on MMP would still be a substantial change in the representation of third parties. Why is that in the PS interest? Is it to see FN members elected and introduce discord in possible parliamentary center-right coalitions?

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.