Snood, you're exactly, 100% correct in your medical reasoning. I am an EMT, so I understand what you are saying. Again, you are absolutely right. But the difference here is that the sharpness of the blade is the same. Rapid clotting is caused by tearing of the arteries and tissue, not the cutting of it. A serrated blade, like the Buzzcut, will bleed more because it cuts more area. It doesn't tear it, it cuts equally as clean as it's straight edge cousin.

The torn tissue has more of a jagged edge for the globulin to grab hold of, causing much more rapid clotting. But the Buzzer isn't tearing, it's making a very clean cut, provided it is sharp.