I don't see how, no. Normal hours are still accessible to B and C, too, only now B and C do better in 'normal hours' as they've got a bit of a leg up. Over time

I don't see how, no. Normal hours are still accessible to B and C, too, only now B and C do better in 'normal hours' as they've got a bit of a leg up. Over time B and C become role models, further increasing the presence of B and C in 'normal hours'. At least on paper.