As I would not argue this point , I believe Comp Cam took advantage of timing when the purple plus series was developed many cam companies were convincing the public that their old single patterns were obsolete a point that was argued by many top knowledgeable cam grinders. But by taking a winning cam grind such as the purple shafts and putting a marketing ploy of improving it by making a dual pattern cam(more modern cam )out of it they were trying to sell Best of both worlds.