With Voland's problem of too huge a front package and too large a rump hump, he might consider a trap/shrug bar rather than DB's. Much easier on the grip/wrist and a trap bar will not rub against the legs as a DB would..
When doing shrugs with a straight bar, experimenting with different hand positions may give a better focus , and stretch, to trap and upper back development ,for some. Anywhere from a close grip to a collar to collar grip and anywhere in between. Worth a few extra sets to find what might advance the size and strength of the traps if that muscle group seems slow or stubborn to develop. Good Luck.