Pensions Bill

Before my noble friend responds, I think that the Minister has ticked off all my questions and said that in fact these were incidental in terms of differences between the 1951-53 group and the 1953-60 group. Given that, I wonder if he could come back to the question that I posed: how is it, then, that those who retire in the first 10 years after implementation are apparently mostly going to be better off, whereas those in this group immediately before that will actually be worse off if they move on to the new system?