Is there a term “effective big blind”? Playing in these tourneys is really a SB/4xSB instead of a SB/2xSB tourney. You can call the BB/ante anything you want, but it is still “effectively” 4xSB, and it does require adjustment, especially about three or four hours in a long tourney.
It’s 4xSB even if your heads up in the tourney so “incremental so it’s the same” doesn’t hold.
I feel that it makes the middle position stealing/semi bluffing even more important, especially when the blinds get worth taking. You almost have to win a hand every blind level if your not deepstacked, and two hands a level would be optimal just to stay even. It does force more aggression in the middle levels it seems.