My delt routine is as follows:

Smith behind the neck presses: 3 warm ups, 2-3 sets to failure at 4-6 reps

1 arm cable side laterals behind the back: 2 sets to failure at 6-8 reps.

Icarian read delt: 2 sets to failure at 4-8 reps.

Dumbbell shrugs: 2 sets to failure at 6-8 reps.

Thats it, I hit delts once every 5 days...

Stroyer

(1) Smith Machine Presses 12-10-8-6
(2) 1 Arm Laterals 10-8-8
(3) Reverse Flyes 12-10-8
(4) Dumbell Shrugs 12-12-10

I never go behind the neck anymore because I've injured myself several times doing that. IMO the best exercises for delt mass are presses. Seat dumbell presses are generally my favorite, but I switch off with barbells too. I always follow that up with lateral raises.

i also like doing the shoulder presses on the smith ,add some side laterals seated to make them a bit harder and some reverse laterals(flyes)..these you can do laying on a bench or standing with top cables....don't do your presses behind the neck.i also tweaked my shoulder this way,keep them in the front.no difference,and if there is..it ain't much,and ain't worth it........

thanks fellas..

vegasLife