Been bodybuilding for over 16 years. Local gym is going to have a meet in July. I really want to participate. Problem is I have no idea how to prepare. I see alot of guys in the gym deadlifting and squatting with bands and chains. I'm very unfamiliar with these. Can someone explain to me the point. Also what is my beat course of action to increase my 3 big lifts? I know there is a science behind it. Or is it just as simple as lifting heavy and slowly increase the weight while keeping the reps low?