RJA,
Yes, the newest versions aren't as stiff as the original versions, but they are still stiffer than other high end pc's that I have used. In other words, if you want a pc that is as flexible as a wet noodle the DCCA's are not what you are looking for.
However, as bigkidz has stated, these are outstanding power cords with a designer-builder (Don Ostrander) who will give you first class service. There aren't many manufacturers who will build a pc to your specifications without a significant upcharge. For example, if you need a 90 degree permanent bend in the pc he will do that for you. If you need the plugs oriented in a specific direction, he will do that for you as well. I think that by doing this some of the "stiffness" issues become non issues.
I would highly recommend these pc's and also would suggest that you contact Don regarding what you are looking for and the specifications that you require. I am quite sure that you will be satisfied with both the product and the customer service.
Best of Luck,
Scifi