But what about when it's a target for torture?

Does bigger mean
... an easier target for a whip?
... more surface area for clamps?
... easier to bind?
... more nerve endings to send signals of pain?

Might smaller mean
... less in the way for ball busting?
... harder, and therefore more rewarding, target for a whip?

As a masochist, I'm especially curious about the opinions of the more sadistic among us.