Man...this thread...
Let's sum it up, AMM-1 is not the only way you can get reasonably accurate power results. Using a scope with true rms clamps and meters will get you there. That being said, the AMM-1 takes alot of the work and math out of it for those who could not do it otherwise. It's a tool, like any other tools, there is always another way. If you use a jig saw to make your sub cut outs why buy a router and circle jig? Because it is easier to get good results. But that doesn't mean the guy who uses the jig saw is suddenly doing it wrong. The same logic can be applied to this situation.
Clamping with the right tools and knowhow will give you accurate results. Im sure this is why Taylor and that sinterman dude as well as myself are frustrated after reading through here and watching the vid, since it is suggesting that clamping will never be accurate which is really not the case. I think the AMM-1 is an awesome tool but it's just kinda shitty to start misleading the general audio community for a marketing campaign...intentional or not, it's happening