But let's say you have a really big piece of cheese, about half meter high. Let's say that once you make contact with the cheese you would be cutting for one more second. In the first case, hitting with the end of the blade, you would cut less deep than if you hit with the blade near the hilt, assuming you use same force to swing and cut. (aka you would need to apply more pressure to actually cut after you hit it)
Just as is the case with plate and 2 handers, I seriously doubt that two hander speed and weight alone is enough to seriously damage a man, you need to apply extra pressure once you hit the dude.