Repacked
Punxsutawney resident
This is the kicker, it might not fell bad at the time....
if you look at the mechanics of those biceps, the two fundamental actions, are to suppinated the hand, and then to lift the arm over the head.
If one wants to develop the forearm do wrist curls and their variants.
These movements are similar to a weighted static hold in different stages of supination I suppose, with a small ROM. IF you do a pronated grip BB or EZ bar curls properly you will feel it stressing your brachioradialis. I agree wrist curls are great but you need some variation.