I´m a bit skeptical of the Mihawk Crocodile duo personally. I won´t say they have nothing in common, but it feels forced. All you have to do is read Alabasta and see Crocodile laughing his ass off, enjoying the time of his life at the idea of killing 1 million people with his bomb. I won´t say Mihawk is a bleeding heart, he is brutal in his own way against random pirates messing with him, but I don´t feel like him getting along so well with Croco works that well. You do have a point about the dishonorable thing though, I do respect Shiryu tricking people and participating in jumping people, and yeah, that wouldn´t work so well with Mihawk(though his student was ready to jump Gaban

). Overall I would like something a bit more... from Shiryu. Okay maybe he isn´t a gag character, but I wonder what he likes about Blackbeard, I mean it´s an abrupt shift from being an impel down guard who kills prisoners, to becoming a pirate himself. Does he help run Blackbeards territories or something maybe? It would be interesting to see what life is like on the BB territories for sure imo