What kind of pre work outs do you guys use? I have been taking C4 for about a year now that I workout out at 4:30am to 6am-6:30am. Cellucor C4 is what I have been taking but it has never really given me that boost. Aside from my PWO, my body see's no other caffeine. I just ordered some Controlled Labs White Flood Reborn as I love their products. Seeing how this thread has been updated lately, figured I would bring it back from the dead with a question.