Whats the extent of your routine on them and are you doing heavy compounds on your back day? How long have you been training, where are your arms at now?
Sorry it took so long to get back to this, these last few days have been hectic.
I just completed Stoppani's 12 week Shortcut to size. Rep Ranges varied from week to week starting from high rep low weight to low rep high weight.
Back days typically consisted of:
One Arm Dumbbell Rows 4x10
Wide Grip Lat Pull down 3x10
Reverse Grip Pull Down 3x10
Low Cable Rows 3x10
I also try to throw some Pull ups in there as well but I am still sorta heavy and these are VERY hard to do more than a few.
Dead lifts were grouped with Leg days, but I do not like the idea of Squatting and DL'ing the same day. For the bulk of this program I was working out at Planet Fitness (yes I know, I know lol) and was not fond of the motion of Deads on a smith machine. I have recently switched over to a "power lifting" gym, which has a ton more free weights and heavier DBs. As far as the Bicep workout I tend the do:
EZ Bar Curls 4x10
Incline Curls 3x10
Concentration Curls 3x10
Cross Body Hammer Curls 3x10
Preacher Machine* 1xfailure
I dont like the Preacher machine, but at this new gym I will be able to pick up more sets if it would help.
Background info.. At the beginning of the year I was very heavy and lost 55lbs to a semi decent size and decided it was time to bulk up before I lost too much BF and looked super skinny. I have only been lifting seriously for about 4 months. I have seen my Newbie gains everywhere but in my "bicep region" as my Tris have even started standing out more. My Bi's are definitely harder and look bigger when flexed, but look very unbuilt at rest position. It is just a little aggrevating due to the fact that my chest is getting thicker, shoulders rounder, back wider and filling out my shirts to be semi tight, but yet my arms feel like they dont come close to filling the sleeve.. lol If that makes sense.. When my workout pump is there my arm feels "wider" but never feels "taller." I think part of the problem I am having is the upper bicep has no height to it when not flexed. Would that come with doing exercises that work on the peak like a preachers?