Tater has described MEO-EST as a way to add oomph to a mix, but mentioned that it adds crudeness, like MSG on food. I think thats because it only amplifies certain pheros, and possibly only certain resultant pheros that your own body generates. Its a spin-factor kind of phero. TAF seems to be similar but theres only a little overlap in what exactly it does. TAF seems to have a consistent scattering effect, even across multiple people.