Okay ive done a good amount of PCT in the past, but i have a question when it comes to these two products. N2GENERATE vs N2GENERATE ES? whats the difference between the two? can N2GENERATE (original) be used for pct instead of the ES (newer)? I'm assuming the ES is a more advance product version of the original N2GENERATE is this correct? I just really wanna know if the older one could be used for PCT as a subsitiution of the ES newer brand??