Help decide: Katana or Black Label for posi/posi quiver?

Been riding Rome Katanas duckstance for last seasons. Just picked up some Black Labels in a deal, mainly because I bought a carver that needs posi/posi stance. Changing highback rotation everytime I swap bindings seemed to much hassle.

So now I got both the Katana's and the Black Labels but which one will go on my carver and which on the duckstance side of my quiver?