I do traps w/ my back as I feel I use them more w/ my pull downs, rows and other upper back movements.For a while now ive been doing traps on back day. Ive heard of people doing it on back or shoulder day. Any input to why one would be better than the other or does it not really make too much of a difference?
I feel them a little with my shoulders but they're not as fatigued so I try to group muscles that work together.
In the end, it really shouldn't matter much if you're hitting them and feeling a pump. You then know you're working them to a level that they receive extra blood (the pump). Do what works best in your routine.