Starts with bar shrugs, pyramid up to working weight for 3 sets, 20 reps.
Last set is a drop set for 20's, -90 lbs, then -90 lbs, no rest (i.e 20/20/20 ).
Next is dummy shrugs, 1 drop set, 20's, drop 10 lbs ea time, 3 drops (4 if still conscious).
Last is machine shrugs, with bench press machine, or standing in the shoulder press machine, 3 single sets.
GK, good call in the holding technique, will try to incorporate next w/o.