Ive never taken them both at the same time before, always on seperate occasions. It's been about 20 minutes and my back is starting to feel extremely warm. Anyone notice these reactions so quickly? the alert feeling hasnt hit me yet but damn im starting to feel hot just standing around typing. 3 Drives was pretty crazy for me alone. I just popped 3 RPM and 3 Drives. Gonna attempt some PR's on legs today