make sure to REALLY concentrate on squeezing your pinky finger when doing concentration curls. makes those outter bi's POP

From what I read, I think hammer curls and close-grip EZ bar curls are good for the outter bi.

i like cross body hammers

close grips and hammer curls. or synthyoil

genetics... the bicep is trained as a whole, there's no magic exercise to develop the outer bicep/inner pec or whatever. your wasting your time doing all those exercises