Sure, why not, I'm always open to information. My current split is: M: Abs/Traps/Shoulders. I've been doing less shoulders lately, and more abs and traps. Just external rotation rehab exercises. T: Arms W: Rest TH: Chest F: Back SA: Rest SU: Legs
You should view training as movements instead of muscle groups. Traps are on your back, they're trained when you do row variations. Arms day is a waste of gym time. Do you not train legs?
Example (Take out pressing exercises if your shoulder isn't up to par and replace with more back work):
Lower-
Deadlift
Stiff legged deadlift
Front Squat
Upper-
Bench press
Horizontal row variant
Bi/Tri/Facepull
Lower-
Squat
Good mornings
Lunges
Upper-
Overhead press
Row variant or Chin-ups
Bi/Tri/Facepull
Note: Those are just example exercises/movements. Now, you're hitting each group of muscles 2x a week. All compound movements. Assistance work can be 4-6 sets of varying reps.
It doesn't look appealing to most people, especially when they're stuck on splitting up muscle groups only once a week. I promise though, you'll gain muscle mass. Like I said though, if your shoulders aren't doing good, then let them heal. If you can only do a pressing variant once a week, then skip it the second day.
Also something to look at: Eric Cressey Shoulder Savers Part 1, 2, and 3 on T-Nation. He brings up training balance and things you can/should be doing with your training program to allow your shoulders to heal.
If you want an exact training program to look at, look in Wendler's 5/3/1, or peak around the workout logs here.
