The new CP's are higher. Mine runs close to 200 on high and about 175 on low. This is for 2 different pots. The key though is that crocks are kept on for long periods of time and food is normally heated completely through. The meat put in a crock already has bacteria growing in it, although it might not be a seriously harmful one.
Once the contents of a crock hit 170, or a true 165, all bacteria dies and doesn't just slow down. It doesn't matter if it's E coli or something that can't make it through stomach acid.
So the bottom line is, IMO, don't pay that much attention to the timing in a CP recipe, but instead cook it a long time. One indication for meat is when it's starting to fall apart, it doesn't do that until it is approaching 190 degrees.