Originally Posted by dealt_with
For muscle growth he'd want more volume would't he?
Na you can definitely get enough volume on an upper/lower, the key is just not having redundant exercises choices in there. You've also got the benefit of the higher frequency.
I believe Lyle McDonald's generic training routine is also some variation of an upper/lower. I believe he also said between 2-8 sets per muscle group is sufficient under the aforementioned frequency. The way I've approached that in the past is simply picking a core movement and then picking an 'accessory' movement on the non-strength 'upper' days for each body part (e.g dumbell presses & incline flyes).