I don't think you can actually change the shape of muscle. If you have a good peak, then you probably have what I think is referred to as long bicep muscle bellies or some such. But you can't create fiber where it doesn't exist. You can only enlarge what you have. And if the bicep is being adequately contracted, then I think you've done pretty much what you can. I think pull-ups and rows adequately address both the back and biceps, as well as the posterior delts to some degree. It may not be "maximizing," but given the reduced recovery ability as we get older, I'd rather focus on the compounds that I have to anyway, and which offer a bigger metabolic bang for the buck. I know opinions vary on this issue, so I'm only stating mine. And I don't mind being corrected if I'm wrong. In fact, if I am, then please tell me.Really??
Curls for the Girls baby...
Love the bicep peak tweak I get. Hate curling with a bar though, only dumbbells.
I need laterals as my middle delts lagging my front delts from all those presses.
As for laterals, yeah, I suppose they address the medial delts well enough. But it is such an unnatural movement, and I had done them for years, so I've had enough for one lifetime. No joy. As I've noted ad nauseam elsewhere, I like the idea of doing movements that have some evolutionary relevance. Apart from story of Icarus (and you know how that ends), I don't know how laterals fit into the scheme of history and evolution. (Of course, the same can be said about curls.)

