I think they've just adjusted the methods haven't they? The Conservatives look very strong though, which I said a few days back.
The key things moving through the campaign are going to be;
1) How far can Labour squeeze the Lib Dem/Green vote further down. There's perhaps 2% points from Greens and potentially about 5-6 from Lib Dems. If that is done it starts the become a two horse race with a similar likelihood to the last election.
2) If that doesn't happen, to what extent are the Labour/Lib Dem votes split in a way that is beneficial to them or the Tories. While it's a simplistic analysis, if the Lib Dems are up in the South but down in North/London and the same in reverse of Labour the election remains relatively open.
3) To what extent do the headline voting figures reflect whats happening in key constituencies. Similar to the above, but if the big re-adjustment lead they've been given following methodological changes is essentially piling up bigger leads in safely held seats in the south while it looks impressive it will not be the most efficient way to spread the vote.
4) As a final aside, how far will Labour's superior ground operation help them perhaps compound some of the polls suggestions in the lead up to and on the day of the poll. From what I can see the Conservative approach is essentially based around digital. It's having decent success. Labour have to hope the marginals they are targeting with large numbers of people buck the national trend somewhat.
It's a fascinating debate. There's been a bump for the Cons this week (though LAB have continued to grow too) though thats to be expected with the decline of the BXP in headline terms (as polls are adjusted). The key is going to be, how far will the Labour growth continue?
The manifesto launch was a big advantage for Labour last time, as were the debates. I think Johnson will struggle at those relative to the advantage he has. It will be interesting if they played out.
That being said, the leads for cons are good, and if they keep rising next week, and Lab stall in progress some concern will be apparent.