I have read in a lot of posts about people mixing SOE or APC with PI, using a 7:3 ratio or something like that. I have a couple bottles of APC at home and they\'ve been pretty good thus far, but it seems like they tend to lose their smell or effect after about an hour. So I decided to give the mixing thing a shot and combined some PI with APC. I added the PI into the bottle of APC at night and decided to put it on the next morning. However, when I looked at the mix, it seemed like the PI was floating on the APC, which perplexed me. They\'re both oils, right? Aren\'t they supposed to go together? I mean, it\'s not like one is water and one is oil. So does anyone know what\'s up with that? And also, has anyone ever tried this kind of mix using APC and PI? If so, what are the results you\'ve gotten? Any hits?