All good info. Try everything for a few weeks and through trial you'll develop your own routine. Me I like keeping my chest, delts, and tri's together, then lats and Bic's off a day then Legs, and start over with chest, delts,tri's. Off the weekend and Monday continue where I left off with Back and Bic's. Every week a different group gets hit twice, and I'm ensured enough recoup time for growth. Be instictive on every exercise, and hit every rep range. Change IS good. I've gone in the gym and done just 20 sets of squats on a leg day! Had a hard time pushing the gas peddle but I guarantee you I shocked my legs.