Hi, I am new to this message board. I need to know how to increase my vertical leaping ability. I know a fair amount on the vertical leap already, but I am really trying to find something that would give me gains like no other. Could any of you guys please help me out? I also need inches on my arms and chest. I want to have abolut 16″ arms, I currently have 12″ arms. I am only 13 years of age, but please do not let that fool you. I am smarter than everyone thinks I am. The only supplements I feel I should take are creatine(twinlab fizz fuel), and some whey(maybe nitro tech). I am aiming to gain about 5lbs. of muscle mass in 5 weeks, without supplementation, is this even possible. I am 13 years old, 5′2″, and I weigh 111lbs., I do not know my body fat percentage, but I’m guessing i’m at about 6 or 7%. I want to increase my vertical leaping ability, so I can dunk. At 5′2″, it sounds impossible, but with the right training, I will accomplish it. Thank you all for reading this message, and any help that you will provide. If you want to discuss this, or any subject with me, please feel free to instant message me at verticaljump1(AIM), or email me at verticaljump1@aol.com. Have a nice day!