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					Originally Posted by  icehog3
					 
				 
				Rob, seems to me that somehow they depend on body chemistry. I have some that work for me, but not for my friends at the gym, and vice versa. That being said, the ones in my rotation that work best for me are: 
 
Creative Labs White Flood 
Nutrex Hemo-Rage Utra 
USP Labs Jack3d 
			
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 Good point, I've been asking around and trying to see which names and brands come up frequently.  From there, I can begin experimenting with some narrowed down choices to see what i like the best. Thanks for the advice!