How about heavy rack lock outs. Say the last 4 inches of your lockout for 10 sets of 3 heavy azz reps first on every arm day. Don't bounce off of the pins in the power rack either. Pause the bar on the pins. Follow that with some heavy dips or skulls. Then maybe some push downs or close grip push ups. Later in the week or maybe first in the week depending on your split. Hit some heavy close grip presses and skulls/press downs/dips/whatever again on chest day. Hit your tris twice a week until they catch up. I was hitting them twice and they grew good. Chest/tries on Tuesday and Shoulders/tris on Saturday is what I did.