Interestingly, the Burnham bounce is much larger in the Manchester mayoral vote (compared to the May local elections) than in the national polling so far.
Owen WinterLabour's share: Manchester 54% (+23 vs local elections) Stockport 50% (+37) Trafford 50% (+27) Wigan 47% (+22) Bury 47% (+21) Salford 47% (+19) Tameside 42% (+18) Oldham 42% (+21) Rochdale 41% (+16) Bolton 40% (+21)