I see where you're going with this, but why get "offended". I could care less what the guy does, he can be a ballerina for all I care. That's not what makes his statements right or wrong. I don't know how much timing is retarded at high rpm, but it sure does not stay constant. Nowhere did Brown say that the design is "wrong" but that it has certain flaws, just like any design. Unfortunately, in the case of the stock chain setup in a high-performance L-gata, the flaw does affect performance. Kameari didn't create their custom chain tensioner for no reason... In Brown's case, it was "better" to slightly advance the cam, but it is up to the end user to determine how much this matters to them. Will the stock chain limit your 7000rpm, 200hp L28? Probably not. Will it limit a 9000rpm, 350hp L-series? Most definitely! Brown is right (don't know about the numbers, but as far as the physics of it are concerned) but it's up to you to decide how applicable it is to your case using whatever method you like.