Thick Traps I have traps and I don't really want or care for them. Deadlifting & vball did it for me.. Constant shrugging in vball while blocking.. I don't ever do any shrugs at the gym. I'm thinking the upright bb rows are hitting it too on shoulder days..
Thick Traps I meant, I'll shrug just under my working set for deadlifts but for 8+ reps. So f you deadlift in 5-6 reps, take roughly that weight and try shrugging it for 8+. Obviously it'll vary from person to person just how much they can do but give it a go and then add a couple of sets in between where you increase weight and lower reps with your goal of shrugging around your one rep max with deadlifts for a couple of reps.