bi's are bi's and there is nothing you can do to target inner or outer

Well doesnt that just suk !

I don't get all this stuff about you can't shape your muscles. Bis are bis, Do rows to build you arms.
If you don't believe this then do it one time. Just one time with serious intent and come back to me and tell me I'm full of it.

Take a straight olympic bar, add a few pounds do three sets of 6-8 reps standing curls. No backswing. Elbows slightly out. Use very little weight if you have to. This isolates the inner part of the bi.

Take an inverted curl, add at least 25s, i use 45s, on each side. Stand, legs bent slightly, elbows in tight and don't move them no matter what!
Do three sets 4-6 reps. This isolates the top of the bi.

the thing about bi, that most people wants...is the peak and the thickness...and the width. whatever that is....unless you're getting stronger in your lifts...them bis ain't going nowhere.

Its a mechanical movement. The bi pulls the forearm up. You simply, physically, cannot "target the upper bi" because the load is transfered to the whole damn thing. If you figured out a way to isolate a axial mechanical load at a specific point of your choosing on something that is attached at two ends (your bicep) - you have a fucking PhD level dissertation on your hands. Youd make a lot of structural engineers RICH.