Alright so I'm mainly working on my upper body right now, (chest,back,triceps,and abs....) was just wonderin what the "break" between weights SHOULD be...if for example I work all my upper body out on monday....tuesday everythings going to be sore....would the most efficient way to gain muscle be to repeat on wednesday?? Or is it that you should wait till the soreness goes away....please keep in mind that I'm looking for the quickest/best/ most efficient way of gaining muscle in a safe manner....thanks people!