It strikes me that there is a distinct advantage with having a number of perpetually changing Number 2's. Because with every new Number 2, there has to be a "settling in period," which affords Number 6, and other prisoners a break between ordeals. Plus, there is always the hope that the new Number 2 will be an improvement on the previous.
As it is with the THEPRIS6NER 2009 series, there is but one Two, which means Two is permanently nasty, and affords Six no such break in his ordeal!
Be seeing you