I hit each muscle every 3-4 dys. I prefer a split and I'm not sure how many sets and exercises to use. I was thinking of
doing 4 exercises with 4 sets. On Sets 1/2 fail within re range of 8-11 and sets 3/4 I fail within 5-8.

or one weeks i can do all 4 sets 8-11 and then the next workout do a rep range of 4-7

I dont get stronger unless I push the limits so I am looking for a balance of strength and growth

ALso Which are your top 4 exercises for eash muscle? Shoulders always confuse me becuase its such a complex muscle with different areas to hit.