"The kind of preservation I have proposed is different than any other I know of. I have trained people into expressing a little bit more than what is called preservation. In other words, they put their imprint on it because they can choose other pieces than what had been there before. They're not imprisoned by what I have done. They have some leeway, not a lot of leeway, but some," Zagar said. "As time goes by, I will clarify my thinking about how things are going in terms of that change."