I tried NO Explode, Black Powder and PlasmaJet.
N.O. Explode was great but to me the best one out there is Plasma Jet. Take 10 capsules 2.5 hours before you go to the gym. The pump and vascularity was crazy and I felt pumped all night and even when I woke up the next morning.
Black Powder made me sick feeling and didnt really have that great of pump.
N.O. gave a great rush and pump but didnt last long.