"Charles Poliquin Tip 97: Training twice a day the same muscle group is the fastest way to gains in strength and muscle. As a rule of thumb, intensive work (lower reps, more sets, faster tempos) in the morning, extensive in the evening (higher reps, slower tempos, more exercises)."
I kind of like the sound of this!!
How would you work this?? how many days a week / days off?? etc