Hey, I'm 18yrs old, and been lifting for about a year, but I'm lookin to find a product or suppliment other than my basic protiens (I need to get big fast to try and walk on to my schools lacrosse team this spring). Just wondering what are the MOST EFFECTIVE, legal powders, pills or whatever, you guys have used and liked the most. My friend claims this stuff called growth factor 1 did it for him...anyone know anything bout that?? The advice is appreciated!!! Thanks boys.