What he's refering to is the fact that most people think that you need to cover the entire surface of whatever you're deadening...not true. Yes, I was once one of these people too. You probably only needed a fraction of what you used. As long as you cover 25-40% of the area you need to dampen, that's about it. Space out the sheets and stay way from the edges.
This is what I was told when I got "taken to school" by Don from Sounddeadener Showdown. That guy runs circles around people in the deadener industry. Very intelligent, and his products are practically nano-technologically engineered. I'm not tryin to bash your product you used as most all of them "get the job" done; I was just referencing.