Did the brazilian jiu jitsu today. It worked pretty well. I'm going to wait a few days before I say if it was worth it or not, but so far me likey. I definitely felt different after a hard roll on the mat. I felt "warm" and "mildy stimulated". Like there was this minor warm glow that was coming out of me. I could feel it in my upper body and from within my face. My brain felt pretty clear during the roll time. On the mat I did get tired, but then again there was no a/c and it is like 90 degrees here in Texas, plus the thick gi jacket. I thought I did pretty well with my breathing (a big part of bjj or any martial arts for those who don't know). I also stayed till about 2:45pm rolling whenever I usually head out at 2pm (starts at 12:30pm), rolling continuously till the end.
I took 2 capsules about an hour before I went for the bjj, like 11:30am, ate a nice brown rice/chicken breast meal, then 2 more at 12pm right before I left. Didn't feel a damn thing until I started getting heated up. Right now though, its 3pm, 3.5 hours from the 1st dose, and 3 hours from the 2nd dose, and I feel awesome. My brain feels like its on a good size dose of a benzo or like 1mg of xanax, except this is lasting way longer than the benzo/xanax feel. I'm pretty impressed. I'm going to take this again on a non workout day to see if the nice brain feely effects come about or if it has to be activated by some strenuous activity (I bought this for nothing else but preworkout stim, just experimenthing however).
With a very small dose of ephedrine, this could be the best pre workout stimulant out there.
*Update - It's 4:30 and about to head to work. My brain feels so awesome. Very noticible effects. I'm surprised it can feel like this from a legal supp.