To the good DR, might I suggest having the leg day in the middle day of the split. Giving some extra rest to the upper body training.
Like:
Day1...chest, shoulders, tri's
Day 2
Quads, hams, calves
Day 3
back, traps and no homo biceps. Don't really think you would need any rear delt work if the back program is sound and well planned out.
Good luck.