all my E has always been good. in fact, the only E i have taken that could slightly be considered lower grade, i was convinced was due to the way it was cut. it was about 5x as strong as any E i had taken before, but it hit within about 15-30m of taking, and only lasted about 2 hours. seemed like something about it just caused it to hit you hard and heavy and just run through the body super fast. again, this stuff was great, but it was different. super intensity, short duration. would be fun to find this kind again =D