Man, I took 6 N2 Amp and 1 heaping scoop of N2KTS (have to order more of each...running low) and want to talk about the Beta Alanine tingle...it hit me hard this morning, and cardio and legs were effortless...only problem is I hit hams really good and they are so tight right now, but talk about rocket fuel!
I would say n2stim jitters would depend on your tolerance....2 caps would definitely make me jittery...1 usually curbs my appetite pretty hard and puts me in the zone