Cool thanks. The training tips are appreciated.
One thing I've always noticed about traps-mine and others- is that they respond really well to heavy training. Forget the higher rep stuff, do them heavy. If you can do eight reps with 315 for front shrugs, then load the bar with 365 or 405 and knock out 4-6. Do this repeatedly. Always push yourself, especially when bringing up a weak/lagging body part.
I also like to do one arm upright rows, sort of a power movement. Grab a DB and raise it mimicking an upright row with a bar, but bring it up as far to your earlobe as your elbow and shoulder will allow. I don't do these with much more than a 60lb'er, but it's quite effective for "raising my traps." Caveat, this does bothers my elbows, so watch for this if you have elbow trouble.
If you're doing deadlifts, then your traps will already be getting some stimulation. If you have time and your split allows, throw in some of the one arm upright rows at the end of the workout.