NOTE: I am not asking which routine is better or which should I start with. I've been strength training for a little while now, with a lot of upsets in my routines, so I never have really made any serious progress, I just went from being weak in the weight room to just below average. I have been trying 5x5 for a while, but have had competitions and other things messing it up. My goal is to gain as much strength as I can, then use that in practical terms with JROTC physical training. Here is my situation, next school year I will be competing in the Raider challenge again with JROTC, and will go out for JV wrestling and cross country. I'm a natural runner, and pick it up easily, so that's no problem given some time. Raider challenge is like track and field for JROTC where teams compete against each other for time in the PT test, a one-rope bridge event, a 1 mile litter carry and a 3 mile team rune, this coming year I believe that they will make every team carry one 20 pound rucksack. I want to bulk up with practical muscle by lifting until the end of June, which is when I will be attending PT sessions and summer practices for cross country. So I'm wondering in your opinions what is the best way to approach gaining lean muscle, 5x5 or 8x3? I've been doing the 5x5 for a while and have wanted to see what the 8x3 will do. Any advice will help, thank you.