I've been running Mix #5 for two weeks now, so I wanted to post a quick update. Mix #5 is quite potent, mainly because the three agents in it are not esterified. So, they absorb and kick-in quickly. I've been using it approximately 30 minutes prior to training, and the positive effects are quite noticeable, e.g. decent strength even though I'm carb-cycling. It's also definitely helping me dry-out.
The oil seems to be a bit thicker than Pharmacom's Test Prop, and I have noticed some PIP with it, but that doesn't last too long.
Also, Mix #5 has a strange aroma that seems to linger. I can't really describe it, other than that it is chemical-like. I actually store the open vial in a sealed container because otherwise I'd be constantly smelling it whenever I was near where I store it.
Overall, I think Mix #5 is a winner, especially if you're prepping. Just hold your nose when you pin it... LOL!