I can't stand most of the energy drinks/shots out there. They taste absolutely horrible and do nothing but make you uncontrollably hyper. I've tried the 5-hour energy shots but didn't feel a thing of them.
My experience with the other energy drinks has been watching other people after their effects with them. I've done various martial arts and fencing tournaments over the past five years where I've seen people down a rockstar or monster before a bout/fight.
One martial arts tournament, some already hyperactive kid chugged a monster a fight or two before I went up against him. He ends up giving me a bone bruise after hitting me too hard (and incorrectly) with the handle of a sparring weapon. Tournament organizers didn't let me compete the rest of the day.... Luckily I got the point and won the gold medal.
As well, one of my fencing teammates is stuck on rockstar I think it is religiously for fencing tournaments. Problem is the crash afterwards (or if he runs out, the crash mid-tournament). I've seen him completely crash early on and get knocked out of the tournament by people who shouldn't have even come close to beating him.
That's why I stay away from that shit. Dangerous, nasty and fails if you don't have a steady supply. One thing I did use though for a while was cytomax powder mixed in with gatorade for some tournaments. I've weaned myself off of it however and just relied on conserving up energy instead of going all out all the time.
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