I do this . I lift very heavy in the 1st half and my legs are usually like jelly after this . I do the other 1/2 in between the upper body w/o.Then i have time for some kind of cardio.
Many days i will split the othres up in to 2 body parts a day. I will do the other legs with the shoulders or bi's.
I am seeing results with the GS.
Anne