cant really answer you, but i didn't want to think i was ignoring.. though I have taken CEE in the past, i was not taking enough i find... i have only been on CEE for the past...2 days and i will be honest i noticed a "feeling" of fullness or some may say "pump" on the first day at 4 grams.. taken right after my work out with some good old VP2. It is interesting to say the least.. more so with the "good vibes" my brain feels as well.... though I am also taking HEAT stack.. which puts me in a nice... "hey buddy" mood to begin with, CEE makes me one step closer to total hippy.