There are soooo many ways to train brah - no one way is the best way. The human body is to complex for that - and individual. But you can experiment with them all and find what triggers you the best. This method you describe sounds like a way to bring up limit strength.

I was just reading about a wave method today by Poliquin, you increase the weight over 3 waves. Your first attempt you are not as strong as the proceding waves... he explains that your mind/body goes through an adaption on the first wave that sets you up to be stronger on the other two. This is one I have never tried.

What is it you want to do? Simply using a double pyramid is not the way to train all the time - you should experiment with other theories. Do you want strength or size? Or both?