All this "complex" circuit training shit makes me laugh...
I'm not gonna lie I go suckered in to training like this for a while too...I mean something so crazy has got to give you gains right?
The basic gimmick is make things so confusing and changing week to week that you can't measure your own progress and the guy that makes the wacky program is supposedly justifying his paycheck...
Newsflash: If you want to be big you have to lift heavy. The best way to lift heavy is to do heavy sets, catch your breath in between sets and get enough nutrition before and after the workout. No PT required.
What training style do you follow? I agree that some overly complex programs may not be worthwhile for certain individuals; but for an advanced trainee who is looking for a balance of hypertrophy, strength, and conditioning then these programs work extremely well.
I am curious as to what you consider heavy? The heaviest dumbells in that gym were 145 lbs and that is what I was using for the incline dumbell presses. The deadlifts were done with 565 lbs and 645 lbs respectively, at a bodyweight of 220 lbs (drug free).
These programs are not for everyone, but they are effective when utilized properly. I have recently published an article on the topic if you are interested in seeing additional applications and how the programs are formulated.