Well, I ordered the sample pack Needto was offering and got some N2KTS. Not sure if this is normal but about 15minutes after trying it I got all flushed and tingling all over. I figured is was my body getting used to it so I said fuck it and went to do some conditioning drills. Boy that stuff was awesome. I never felt so good and energized. I beat all my personal best times on some drills and even as I was getting tired I still was beating old times. The only problem is I twisted an ankle but hardly noticed it while running and kept pushing through. This stuff rocks.