badass, I used to abuse the eca stack. You might get pretty pumped, but keep doing it and you will have permanent problems with sweating. If it happens, go to your doctor and ask for drysol. After a while, youll go back to normal. Did I mention that i couldnt sleep at nite from all that caffeine? do you ever experience this? Now that Im normal, I see that taking just one hydroxycut (5mg ephedrine, 25 mg caffeine, etc.) on an EMPTY STOMACH in the morning will get me as pumped as a couple of stacker 2's on a full stomach. Also, since i only take them once or twice a week, my body does NOT get used to them. This method is much safer. I dont know about you, but when I took that much of the stuff, I would have periods of depression when i was COMING DOWN from the ephedrine/caffeine. it was not fun, not to mention the chronic sweat. do whatever you want, but if you want to be safe and still have a good buzz, go with one of those tabs no more than every other day. just my two cents....