u can try mine, ive seen mad results, and shoulders have always been my WEAK link in the past, now they are becoming my strongest.
4 sets of bb presses on smith machine
** superset db front raises after each set(no rest)
4 sets of bb presses on smith(nehind neck)
* superset db lat raises after each set(no rest)
Start with front presses on smith machine, and after finishing set, immediatly no rest do one handed DB front raises for high reps (15+) ( i hold on to the machine with other hand.)
Rest for 30, then using same weight, do behind the neck presses, (obv you prolly know not to go all the way down, but to the dip/hole in back of head), then again without rest grab a DB and do high rep DB lateral raises one handed( i also hold machine with other hand.)
This was one complete go around, and you still have 3 more to go. i started this type of routine around 8 months ago i think, and ive gone from lifting 25lb DBs high rep, strict form, to 50lb DBs for raises.
For the postiers ill superset them the same way with upright rows, and have 5 sets on reverse pec @ end of w/o. I also do shrugs/bb shrugs near end as well, duration should hit right @ hour, if you w/o alone. lll do this for 2 weeks, then switch to high volume standing military presses and DB presses for one week, and return back to this thereafter. Hope this helps ya if ya wanna try it.