What's a generic CPC?

Okay, I'm confused, David (and whomever else is lurking here at lantbec.blogspot.com)... what the bloom'n blazes is a "generic CPC." Isn't the value of the CPC that it provides an actual unit with actual feedback on an actual self-assessment. You're usually on the cutting edge, Dave, so I'm assuming I've missed some key component that will make it all seem so obvious (I am a bit of a dullard, I know).

Thanks.