Ok so been using v2 pre and aftermath post. I really love the energy and pumps Im getting. Front squats two days ago i thought my quads were going to explode. Yesterday was shoulder day and i had a hard time getting my reps because of pumps, but thats a good thing i reckon. It seems to be working very well and ive only been using the one teaspoon serving. I dont think there anything ive tried yet that gets me as tingly as this product, seems to keep you jacked for big lifts. I scoop of this and some metallica and Im a beast. LOL