Grumpy, it's actually tech tip 2005. And I agree, both this argument of his AND the tech tip 2003 seem to have a flavor of lining parts combos up to prove his point.
I've played with DD2000 to see what was up with single and dual pattern cams (see tech tip 2003), and for a mufflered system, I have to say that a dual pattern cam will almost always get you more low end torque with more top end power, if you chose the durations correctly (optimize them for both areas). Very strange, I thought that I could learn something from Ed, but instead I seem to be seeing holes in his theories. I probably just don't understand what he's getting at.