I tried that…doing all " extras on their own day" I did calves, abs for sure and did a little extra forearms, traps, hamstrings w/ abductors-adductor machine. But as you can see it started to become another full hour in the gym…but I like the idea in off-season of bodybuilding to do extra for weak parts…it used to matter that you had calves and what we called tie ins, glute/ ham, delt/ tri