Well, I'm approaching the end of my first tub of Jacked, and unfortunately, I only picked up one during the presale. Now I am now kicking myself for not getting three. Jacked is possibly one of the most synergistic pre-workout blends that I have ever used, and for the exceptionally low price it simply cannot be beat. I was faithful to RPM for years, but my pre-workout shelf might have to make some room for Jacked. I must say, I haven't used three scoops yet because quite frankly I'm afraid to. One scoop is good for a quick pick me up, two scoops and I'm on fire, I couldn’t imagine the ferocity of three. Thanks USPLabs, for the most intense pre-workout supplement that I have ever used!