I noticed that the Control Contacts are made in either Romania or Potugal, while I believe that the True Contacts are made in the USA. However I don't know how much of a difference that makes.
Note that the ControlContacts do give up those fancy three-layer wear indicators that are built into the TrueContacts, but the ControlContacts apparently have an extra layer (presumably an extra belt) between the steel belts and the tread. If you pull up the specs on both at the Continental site (not at the Discount Tire site), and you specify the same size for each one, the weight is about 0.8 pounds heavier for the ControlContacts - presumably this correponds to the extra belt placed over the steel belts.
In some sense, it's good that the weight is a little bit more for the ControlContacts, since if it wasn't, I would suspect that they had a cheaper / thinner sidewall structure. The fact that they have the additional belt and the weight correspondingly incresed by 0.8 pounds per tire leads one to believe that the sidewalls are unchanged between the two.
I also find it interesting that the 5-rib design of the CC's closely resembles the 5-rib design of the ProContact, which is a slightly higher-performing tire design.
Here is the Control Contact:
View attachment 112292
Here is the ProContact:
View attachment 112293
What does all of this mean? I'm not sure!