I've been having some trouble with my RPM too, and some advice from the awesome guys at Applied would be great
I've been taking it a little over a week, the first few days I used it I popped three caps about an hour before workout, empty stomach, etc. And they were great! Awesome energy, aggression, and strength. But after the first few days it stopped working very well. I seem like I get tunnel vision and zone out on my doses now. I tried upping it to one in the morning and 3 pre-workout but that didn't really help either. My body temp is still up and I feel the occasional euphoric feeling through my body but I'm missing those great results from the first few days. Is it possible I'm using too much/too little? I weigh right around 165, and it usually isn't very hard for stims to take effect on me.
Edit: By the way, I've been taking it at the same time every day, same diet, etc.