Well, you've probably seen my reasoning of late: there are 3 bodyparts. So my "split" is chest, back, and legs...BUT...I do all 3 if I can...one or two if I can't...and keep a rotation going, so whatever was missed is next to get hit. On the "good" weeks where we don't miss workouts, and wholebody is done, there are 3-1/2 workouts for every muscle. On a "bad" week, I might get as little as once per bp. due to hitting only one thing once per workout.